Ted Stryk
@tedstryk
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Interplanetary Dumpster Diver. Images I tweet are Copyright Ted Stryk (processed or taken by me) unless otherwise noted.
Knoxville, TN
Joined January 2009
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Behold, Io from Juno, taken today during its closest-yet flyby of Jupiter's volcanic moon. This is just incredible.
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Now that Voyager 1 is back online, mark your calendars. On November 18, 2026, Voyager 1 will become the first human made object to be 1 light day away from earth, meaning that its signal will take a whole day to reach earth and vice versa.
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Today in 1982, Venera 14 imaged the surface of Venus. It would be, to date, the final time. While Vegas 1 and 2 would deliver landers and balloons to Venus in 1985, they would not image the surface. And since then, there have been no landers.
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Fifty years ago today, Zond-8 circled the moon, returning film and other experiments to earth. The views recorded on that film are truly breathtaking.
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Ultima Thule to scale with other objects in solar orbit that humanity has visited smaller than 100km across.
@elakdawalla
and I did the original work, to which I added more objects to update it
#UltimaThule
#UltimaFlyby
#MU69FLYBY
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Io, moon of Jupiter, from the Juno spacecraft on October 15, 2023 (yesterday!). This is the sharpest look we've had at its volcanic surface since the days of the Galileo orbiter.
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The surface of Triton, moon of Neptune, from the approaching Voyager 2 in 1989.
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Today in 1982, Venera 13 landed on Venus, taking the first color photos of the surface of Venus. These are my reprocessed versions of the full panoramas.
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Today in 2005, the Huygens probe looked out across the surface of Saturn's planet-sized moon Titan. This is what it saw.
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The first image of Mars from Perseverance, colorized and with lens correction to compensate for the hazcam fisheye distortion. A more human perspective.
#mars2020
#MarsLanding
#Perseverance
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Today in 1982, Venera 13 landed on Venus, taking the first color photos of the surface of Venus. These are my reprocessed versions of the full panoramas.
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Thirty-eight years ago today, through the eyes of Venera 14, humanity saw the surface of Venus for the last time to date.
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Today in 1981, Venera 14 touched down on Venus. Sadly, it's images are still humanity's most recent views from the Venusian surface.
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Fifty-one years ago today, Zond-8 circled the moon, returning film and other experiments to earth. The views recorded on that film are truly breathtaking.
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I processed a section of
@ESA_Rosetta
view duringfinal descent, 16 km over the surface of the comet. A very human perspective.
#CometLanding
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@EdKrassen
Sadly, their followers will think that this is part of some liberal plot to discredit them. They're in too deep. It's like what Carl Sagan said about people who had been "bamboozled." Eventually it becomes too painful to admit they've been fooled, so there is no coming back.
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Today in 1979, Voyager 2 returned humanity's first close-up views of ocean world Europa, moon of Jupiter.
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Early this morning,
@NASAJuno
flew by Europa, returning our first closeup view since the Galileo spacecraft in 2001. Europa, with its ocean under its icy surface, is the target of
@EuropaClipper
, which will arrive at the beginning of the next decade to explore. Enjoy the preview!
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Juno's final image from the flyby of Io with the plume enhanced for visibility. This is current volcanism on another world. We may have known about Io's volcanoes for over 40 years, but it never gets old.
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Today in 1982, Venera 14 looked out onto the Venusian surface. It is the last time humanity has done so to date. This view is a real image, not sampling from imagery like the more complete view of the horizon many have shared.
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As of today,
@NASANewHorizons
, 25 AU out, is farther away from the Pluto system than Earth. This is a major milestone as it speeds out of the solar system.
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Today in 1979, 45 years ago, Pioneer 11 made humanity's first encounter With Saturn. Voyager 1 would follow in 1980, followed by Voyager 2 in 1981, creating a fascinating snippet of the planet's changing seasons. Pioneer approached the night side of the rings.
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Io transiting over the Jovian cloud tops from Voyager 1 in 1979.
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Thirty-five years ago today, Voyager-2 made humanity's first and only encounter with Neptune, Triton, and the rest of the 8th planet's system. I'll never forget watching the images come down on PBS.
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A cloud above the surface of Triton, moon of Neptune, seen over the limb by Voyager in 1989.
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Look at this closeup view (Miranda, moon of Uranus again). There is so much going on. I want to closely examine those cliffs.
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The planet-sized moons of the outer solar system. Callisto, Ganymede, Europa, Io, Titan, and Triton.
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This image, by Anthony Wesley, may be the best earthbound picture of Mars I've ever seen.
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Today in 1989, Voyager 2 looked back and saw a crescent Triton transiting a crescent Neptune. Voyager's grand planetary tour was over, though it's mission would continue to the outer heliosphere and beyond into interstellar space.
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The Juno Jupiter orbiter flew by Io, Jupiter's super-volcanic moon, on May 16, returning arguably the best imagery of the moon since the Galileo Orbiter around the beginning of this century. Definitely the best since New Horizons in 2006.
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I came across this graphic of Jupiter in 1974 and 2018 posted by Reddit user PhilipTerryGraham using my work (Pioneer 11) along with that of Sean Doran
@_TheSeaning
(
@NASAJuno
). Really puts things in perspective.
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Europa over the clouds of Jupiter from Voyager 1 ion March 3, 1979. The Voyager 1 has recently made its first meaningful contact with earth since last fall, raising hopes that the mission can continue to explore interstellar space.
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The South Polar Cap of Mars on July 31, 1969, from Mariner 7 as it completed humanity's third flyby of Mars. I'll say it again. This is the oldest view from beyond the earth-moon system that is truly beautiful, striking even if one doesn't know it is 50 years old.
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Today in 1989, Voyager 2 looked back and saw a crescent Triton transiting a crescent Neptune. Voyager's grand planetary tour was over, though it's mission would continue to the outer heliosphere and beyond into interstellar space.
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Enceladus, moon of
#Saturn
, in sunlight and Saturnshine, taken yesterday, November 27, 2016, by
@CassiniSaturn
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@medicalaxioms
@dremilyportermd
"If you don't believe medical workers and think third graders know more, why are you here?"
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Europa, moon of Jupiter, from the Galileo spacecraft on February 1, 1999.
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Jupiter with moons (left to right) moon Europa, Ganymede, and Io from Voyager 1 on February 22, 1979.
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When I say that Voyager turned the Galileans into worlds, this is what I mean. On the left is our best previous view of Ganymede, taken by Pioneer 10 in 1973. All we can see are bright and dark markings. Compare that to Voyager 1's best global mosaic. It's a real place.
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Forty-four years ago today, Venera 9 made humanity's first landing on Venus (and, for that matter, the first successful landing outside the earth-moon system). Meanwhile, its orbiter circled the planet, sending back data on its surface and atmosphere.
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A closeup of Europa's complicated surface from Galileo on its 19th orbit of Jupiter in February, 1999.
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A high resolution view of the Uranian rings from Voyager 2 in 1986. As the spacecraft flew past, it used its scan platform to track the rings during a long exposure, which is why the starts are visible as trails of light.
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Voyager 2's best color view of Ariel, moon of Uranus, showing cracks on its surface.
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Some views of Neptune from Voyager 2 as it flew by the planet 32 years ago today.
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Another view of Iapetus, moon of Saturn, from Voyager 2 in 1981. This one better shows the dark regions.
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Ganymede, moon of Jupiter, seen by the Galileo spacecraft during its first orbit of Jupiter on June 26, 1996.
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Mars from the Hubble Space Telescope. This image was taken 21 years ago today.
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Today in 1982, Venera 14 looked out across the scorched plains of Venus. No spacecraft has done it since.
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In 1975, 43 years ago today, Venera-9 became the first human made object (and presumably the first object period) to take images from the surface of Venus (or any planet besides earth, for that matter).
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On March 1, 2023,
@NASAJuno
flew by Jupiter's moon Io, returning images including this one at 34 km/pixel, which is the best view we've gotten of Jupiter's volcanic moon since New Horizons flew by in 2006. Features are becoming distinct. Much closer images coming later this year.
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Today in 1989, Voyager 2 was beginning to be able to see Triton in detail as the spacecraft approached the Neptunian stuff. Some of the cryovolcanic plumes can be seen as streaks at the bottom of the disk.
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All members of the Pluto System from
@NewHorizons2015
, shown at 1 km/pixel. Pluto and Charon, technically a binary planet, clearly anchor this eclectic system, but the small moons are tantalizingly interesting as well. Together they have a story to tell!
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Ariel, moon of Uranus, transiting and casting is shadow on the planet, seen by the Hubble Space Telescope's Advanced Camera for Surveys on July 26, 2006. The second version is brightened to aid the visibility of the Uranian rings.
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Pluto from the receding New Horizons spacecraft in July, 2015. This was the only view obtained between the closest approach imagery and the more famous crescent Pluto image, and it fills an important gap in the phase angle coverage of this mysterious world.
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Iapetus, the two-toned moon of Saturn, from Voyager 2 in 1981.
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Neptune and it's planet-sized moon Triton from the Hubble Space Telescope on January 14, 1991. Triton is the faint dot toward the upper right.
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Ganymede, moon of Jupiter, largest moon in the solar system, and 8th largest object orbiting the sun or orbiting something that orbits the sun, from Galileo. It surprises me how many people are surprised when I remind them that it has distinct polar caps
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Tashmentum, a bright, young ray crater on the surface of Ganymede, moon of Jupiter, seen by the approaching Voyager 1 on March 5, 1979.
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Neptune and Triton from the receding Voyager 2 on September 3, 1989.
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In October, 1970, Zond 8 captured this dramatic view of earth peaking out beyond the lunar limb. The image was take on film, which was returned to earth for processing.
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The moons of Uranus larger than 150 km in diameter from
@NSFVoyager2
. Once again, we see extremely varied surfaces on moons within the same planetary system.
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On April 9th, Juno flew by Io, moon of Jupiter, the last close flyby in the current mission extension, though there will be some distant ones. The images are truly spectacular, although it is bittersweet to not be looking forward to the next set of images.
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The highest resolution color views of Ariel, Umbriel, Titania, and Oberon, moons of Uranus. The view of Oberon is also the highest resolution view overall.
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The Gilgamesh impact basin on Ganymede, moon of Jupiter, seen by Voyager 2 in 1979.
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Forty-four years ago today, Viking 1 touched down in Chryse Planitia, becoming the first successful Mars lander and the first long-term lander mission outside the Earth-Moon system.
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Today in 1959, Luna-9 photographed the far side of the moon and the photographic exploration of the solar system began.
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My favorite from being attacked by a SpaceX fanboy today? Cassini was "frivolous" and not real exploration, while Musk is working to save humanity. 🤣
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Io, the hyper-volcanic moon of Io, seen at about 5.5 km/pixel from the Galileo spacecraft on October 16, 2001. A plume can be seen at about 2 o'clock.
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Mars on March 25, 1978 from the Viking 2 lander, showing late-afternoon shadows on Utopia Planitia. The canister on the right is the Labeled Release Experiment which looked for signs of life.
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Utopia Planitia, Mars, in the late afternoon on October 26, 1976. A dramatic, low-sun view of boulders and one of the mini-valleys so common at this site.
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The rocky surface of Utopia Planitia, Mars, from Viking 2, with distant hills visible on the horizon.
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Pele, a volcano on Io, moon of Jupiter, seen erupting in March, 1979, by Voyager 1. The plume is hard to discern against the surface, but it can be seen against the darkness beyond the terminator/limb.
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Neptune and Triton from the Hubble Space Telescope on July 23, 2006. This was obtained using the now-defunct high resolution channel of the Advanced Camera for Surveys.
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The latest view of Io, moon of Jupiter, from
@NASAJuno
during its flyby today. Loki, which appeared as a dark spot, appears bright at this illumination angle, just above the center of the sunlit part of the disk. A small volcanic plume can be seen to the right of the bottom.
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The edge of Triton's south Polar cap from Voyager 2 in 1989, using data obtained at about 350 meters per pixel.
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Ganymede from Voyager 1 in March, 1979. Ganymede is the largest world in the solar system that is neither a planet nor a star.
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Today in 1979, 40 years ago, Voyager 2 made its closest approach to Jupiter, completing a paradigm-changing double encounter. The Galilean moons were dynamic worlds, as fascinating as any planet. It is hard to fathom how exciting this must have been at the time.
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Today in 1979, Pioneer 11 made the first flyby of Titan. The hemispheric brightness differences and hints and atmospheric hazes were seen. It was also the first clear warning that the atmosphere would obstruct Voyager's ability to see the surface of this still-mysterious world.
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By far the best color image we have of Miranda, moon of Uranus.Voyager did color by taking images through different color filters to be combined on the ground. As Voyager's trajectory led to moon encounters coming close together, there was little time and DTR space to do this.
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A more distant shot from today's Io encounter, showing Loki, the big dark volcanic feature in the upper portion of the image, in more direct view.
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Jupiter's moons Amalthea (left) and Io (right) from the Galileo spacecraft on November 6, 1997. This is not a montage. Amalthea serendipitously happened to be next to Io from the perspective of the spacecraft.
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Ganymede from Voyager 1 in March, 1979, showing the boundary of the bright north polar region.
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Phobos, moon of Mars, hanging over the planet's limb in this image from the Phobos-2 orbiter on February 28, 1989.
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A pile of rocks at the Viking 1 landing site (possibly including an outcrop), with a rater rim occupying nearly two thirds of the horizon. Every successful lander on Mars has returned views that are evocative beyond their scientific/historical significance. This is important.
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Europa, Galileo orbit E19, February 1, 1999. I can't wait to get back with modern cameras and a functioning antenna to send pictures back.
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