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Joined December 2007
Born October 1, 1958
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  1. Pinned Tweet
    20 hours ago

    Tonight: 🌌 Find a spot with an unobstructed view of the sky 👀 Look southwest an hour after sunset 🪐 Spot the "Great Conjunction" of Jupiter and Saturn! Why the two planets appear so close together:

    Night sky past sunset with Jupiter and Saturn conjunction visible
    331 replies 3,220 retweets 13,103 likes
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  2. 29 minutes ago

    People around the world shared a moment of unity Dec. 21 when we looked up to admire the same thing: the Great Conjunction. Did you see it? Reply w/ your photos & videos. Missed it? Don't worry; Jupiter & Saturn will still look impressive for the next few days. 📸:

    Sunset sky near Chapel Hill, North Carolina with Jupiter and Saturn conjunction
    110 replies 276 retweets 1,919 likes
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  3. Retweeted
    15 hours ago

    Jupiter and Saturn appear a tenth of a degree apart in this image taken near Chapel Hill, NC during an astronomical event known as a “Great Conjunction.” See more images from tonight and previous nights ➡️

    105 replies 1,539 retweets 8,848 likes
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  4. 16 hours ago

    Skywatchers are enjoying a once-in-a-lifetime look at a close alignment of Jupiter and Saturn! Today, with , we explained what we're seeing from Earth and shared some perspectives from around the solar system:

    153 replies 1,856 retweets 8,847 likes
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  5. 18 hours ago

    Tonight's the night! Look up! 😍 And if you can't see where you are, don't worry — Jupiter and Saturn will still look impressive in the night sky over the next few days.

    Saturn and Jupiter just before their great conjunction on Dec. 21, 2020. Skull Valley, Utah.
    Skywatchers, you're in for a once-in-a-lifetime treat! Jupiter & Saturn are doing a planetary dance that will result in the Great Conjunction on Dec 21, just after sunset. Find out: 🤩 When and where to look up 📷 How to photograph the conjunction Visit:
    137 replies 1,156 retweets 5,463 likes
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  6. Retweeted
    20 hours ago

    ☁️😞☁️ Cloudy where you are for today's ? Don't forget that Jupiter & Saturn will still be very close together – and quite a sight – in the southwest sky for the next few days! ✨ Bright Jupiter will be just to the left of dimmer Saturn.

    night sky with clouds and stars
    44 replies 496 retweets 2,895 likes
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  7. Retweeted
    22 hours ago

    Stay for the view 📸 Designed to image rocks a few meters away, I've turned the Remote Microscopic Imager in my ChemCam instrument from microscope to telescope and spied the wall of Gale Crater, 59 km away. See the massive mosaic in laser vision:

    45 replies 339 retweets 2,348 likes
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  8. Retweeted
    20 hours ago

    This time-lapse video shows the robotic arm installing the Bishop airlock to the Tranquility module on Saturday. The new research airlock expands science operations on the station.

    New Airlock Attached to the Space Station
    55 replies 516 retweets 3,925 likes
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  9. Retweeted
    Dec 21

    Look out at the night sky 👀 Seeing double? Don't worry, you're not alone! For the 1st time in 800 yrs, Jupiter & Saturn will be so visibly close, they'll form a double planet! 🪐🔭 See this once-in-a-lifetime Great Conjunction with →

    109 replies 1,498 retweets 5,817 likes
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  10. 22 hours ago

    Today is the winter solstice in the Northern Hemisphere, marking both the beginning of winter and also the shortest day of the year in terms of daylight hours. In the Southern Hemisphere, summer is underway:

    What's Up: December 2020 Skywatching Tips from NASA
    Catch the year's best meteor shower, the Geminids. Then witness a close pairing of Jupiter and Saturn and mark the shortest day of the year on the northern winter solstice.
    53 replies 1,396 retweets 5,765 likes
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  11. Retweeted
    23 hours ago

    TONIGHT ✨ Look up to witness an end-of-year treat! This evening, Jupiter and Saturn will appear a tenth of a degree apart — an astronomical event known as a “Great Conjunction.” Want to learn when & where to look up? Watch this Live episode:

    63 replies 833 retweets 3,885 likes
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  12. 23 hours ago

    Replying to @Dr_ThomasZ @NASAAstrobio and 8 others
    So you want to know how all these accounts organize a mass thread? They planet! 🤪 But really, you should pop outside and look up and don’t forget to watch Live to answer all your Great Conjunction questions:
    8 replies 108 retweets 952 likes
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  13. 23 hours ago

    Replying to @NASAAstrobio @NASAPersevere and 7 others
    Yea, that Saturn and Jupiter won’t appear this close again until 2080? Make sure you don’t miss the opportunity to see it! I love seeing so many accounts across NASA come together for The Great Conjunction! , do you know how they do this?
    10 replies 221 retweets 1,781 likes
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  14. 23 hours ago

    Replying to @NASAPersevere @NASAExoplanets and 6 others
    As long as we’re talking about Jupiter and Saturn – how could we not mention their many intriguing moons? Icy moons like Jupiter’s moon Europa + Saturn’s moons Enceladus and Titan are prime targets for astrobiology exploration. , have any more fun facts?
    7 replies 112 retweets 925 likes
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  15. 23 hours ago

    Replying to @NASAExoplanets @NASAJPL and 5 others
    Indeed. Star trackers help missions like me know our place in space. By keeping a close watch on celestial bodies, I’ll make my rendezvous with Mars in February. Follow my journey and enjoy the view:
    2 replies 36 retweets 325 likes
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  16. 23 hours ago

    earth image with locations to choose
    Replying to @NASAJPL @SOFIAtelescope and 2 others
    Eyes on Exoplanets lets users select their locations on Earth and look up at the stars, planets and constellations. You can even find Saturn and Jupiter to see how close they are! will use a star tracker, too!
    3 replies 37 retweets 261 likes
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  17. 23 hours ago

    Replying to @SOFIAtelescope @NASAUniverse @NASAVoyager
    Without leaving the planet, you can use @NASAEyes to change your point of view. See Earth, Jupiter and Saturn moving in real time:
    5 replies 42 retweets 255 likes
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  18. 23 hours ago

    Replying to @NASAUniverse @NASAVoyager
    Yes! Jupiter and Saturn appear to pass each other in the Great Conjunction. When a planet passes in front of a distant star, it’s called an occultation. These eclipse-like events let us study the atmospheres of planets like Pluto without leaving Earth:
    3 replies 42 retweets 275 likes
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  19. 23 hours ago

    Replying to @NASAVoyager
    Perspective is everything! From our vantage point on Earth, we’re seeing Jupiter pass close to Saturn. We can learn about a lot of things in the universe by having just the right point-of-view, too. Right,
    4 replies 21 retweets 178 likes
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  20. 23 hours ago

    Replying to @NASAHubble @MarsCuriosity and 9 others
    Do I! Here are close-up shots of Jupiter from my flyby in '79 and Saturn in '80. Near or far, these planets sure are beauties.
    7 replies 61 retweets 424 likes
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