Tweets

  1. Popular at EarthSky: A 2nd exoplanet confirmed for Proxima Centauri 🌌

    Astronomers have confirmed a second planet – 7 times more massive than Earth – orbiting Proxima Centauri, the closest star to our sun. Read more: https://bit.ly/3fxyrsW  πŸ‘“

    Image via Michele Diodati/ Medium.

  2. Popular at EarthSky: Rise of carbon dioxide in the atmosphere continues unabated 🌎

    NOAA reports that atmospheric carbon dioxide measured at Hawaii’s Mauna Loa Observatory in May 2020 was the highest monthly reading ever. Read more: https://bit.ly/3dQoMgG  πŸ‘“

    Image via NOAA. πŸ“Έ

  3. Don't miss … Moon and Venus at dawn 🌘🌌

    A glorious sight awaits in the early morning sky, for anyone with a clear sky, an unobstructed eastern horizon … and a good alarm clock. Read more: https://bit.ly/30OiVVF  πŸ‘“

    Image via EarthSky.

  4. Libra? Here’s your constellation πŸŒŒβš–οΈ

    The zodiacal constellation Libra the Scales is a fixture of the evening sky during Northern Hemisphere summer (Southern Hemisphere winter). Read more: https://bit.ly/30Q5ft6  πŸ‘“

    Image via http://ianridpath.com .

  5. All you need to know: June solstice 2020 🌎

    The June solstice - your signal to celebrate summer in the Northern Hemisphere - will happen on June 20 at 4:44 p.m. CDT in North America. Read more: https://bit.ly/2Zho6JA  πŸ‘“

    Image via Abhijit Juvekar. πŸ“Έ

  6. Earth's largest waterfall - known as the Denmark Strait cataract - begins 2,000 feet under the ocean surface near the southern tip of Greenland and plunges down nearly 2 miles. But how can there be waterfalls in the ocean? 🌊 Read more: https://bit.ly/2N0DWEi  πŸ‘“

    Image via NOAA.

  7. Tonight … Find the Crow, Cup, and Water Snake 🌌

    At nightfall tonight, or any June evening, look in a general southward direction for Spica, the brightest star in the constellation Virgo the Maiden. Read more: https://bit.ly/2ENwrgo  πŸ‘“

    Image via EarthSky.

  8. Tonight … See the Dragon’s Eyes πŸŒŒπŸ‰

    Look in the northeast on these June evenings, near the star Vega. You'll see the stars Rastaban and Eltanin, the eyes of constellation Draco the Dragon. Read more: https://bit.ly/2RAyv0c  πŸ‘“

    Image via EarthSky.

  9. It's part of science legend that Galileo dropped objects of different masses from Italy's Leaning Tower of Pisa in order to contradict the notion that heavier and lighter objects fall at different rates. Read more: https://bit.ly/2AAL1Je  πŸ‘“

    Image via Michael Kramer/MPIfR.

  10. Wow! New Horizons sees parallax for Proxima 🌌

    For the first time, a spacecraft has sent back pictures of the sky from so far away that some stars appear to be in different positions than we'd see from Earth. Read more: https://bit.ly/2UJoMYq  πŸ‘“

    Image via NASA. πŸ“Έ

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  11. Tonight … Come to know the Summer Triangle πŸŒŒβ–²

    We in the Northern Hemisphere can see the Summer Triangle for part of the night at any time of the year. But seeing it in summer is the most fun! Read more: https://bit.ly/2ZIxpT1  πŸ‘“

    Image via EarthSky.

  12. The fire and the fireball β˜„οΈ

    Eliot Herman captured this image on June 9, 2020. The bright streak is a fireball, or particularly bright meteor: a bit of space debris entering Earth's atmosphere and vaporizing as it falls. Read more and see photos: https://bit.ly/2Y0rNpu  πŸ‘“πŸ“Έ

  13. New exoplanet system is 'mirror image' of Earth and sun πŸŒŽβ˜€οΈ

    Astronomers have found a new exoworld, less than twice the size of Earth, which orbits the sunlike star Kepler-160, just over 3,000 light-years away. Read more: https://bit.ly/2BZ40xm  πŸ‘“

    Image via MPS/ RenΓ© Heller.

  14. What is the Big Bang? πŸ’₯πŸ€”

    You've probably heard of the Big Bang as the event that gave rise to our universe. You might know it occurred some 13.8 billion years ago. Read more: https://bit.ly/2YvhCbr  πŸ‘“

    Image via NASA.

  15. Venus at noon 🌌

    Venus was bright in our evening sky in recent months, but it reached inferior conjunction on June 3. Soon, you'll spot this bright planet in the east before sunrise. View at EarthSky Community Photos: https://bit.ly/2BWgaah  πŸ“Έ

    Image via Steven Bellavia. πŸ“Έ

  16. Watch for the moon and Mars before dawn πŸŒ˜πŸ”΄

    Mars will be the brightest object near the moon these next few mornings. Notice how red in color it is! Neptune is up there, too, but requires a telescope to be seen. Read more: https://bit.ly/2MSh2Py  πŸ‘“

    Image via EarthSky.

  17. June 2020 is a wonderful time to start watching Mars. It's in our predawn sky now, but will soon be visible late at night ... and then at sunset. Over the coming months, Mars will brighten dramatically. πŸ”΄ Read more: https://bit.ly/2FmoII6  πŸ‘“

    Image via Dennis Chabot. πŸ“Έ

  18. Earliest sunrises come before the summer solstice πŸŒ…

    At mid-northern latitudes in the Northern Hemisphere, your earliest sunrises of 2020 either already happened, or they're happening now. Read more: https://bit.ly/2F53AV2  πŸ‘“

    Image via Steve Scanlon Photography. πŸ“Έ

  19. What is an opposition? πŸ€”πŸŒŒ

    We've talked a lot in the last few days about exciting times for observing Jupiter and Saturn. The 2 planets are very near each other now on the sky's dome, heading for a great conjunction. Read more: https://bit.ly/2Jv5YFQ  πŸ‘“

    Image via NASA.

  20. Rise of carbon dioxide in the atmosphere continues unabated 🌎

    Scientists report that atmospheric carbon dioxide (CO2) measured at Hawaii’s Mauna Loa Observatory for May was the highest monthly reading ever recorded. Read more: https://bit.ly/3dQoMgG  πŸ‘“

    Image via NOAA. πŸ“Έ