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Moon, Jupiter, Saturn on October 13 to 15
Moon, Jupiter, Saturn! They're a wonderful sight on the nights of October 13 to 15, 2021 as viewed from most parts of Earth. Watch for them.
October 13, 2021
51 Eridani b: An exoplanet orbits its star
An amazing animation of the young, Jupiter-like exoplanet 51 Eridani b, in orbit around its star, only 96 light-years away.
October 12, 2021
Ancient Martian lake confirmed in rover images
Images from NASA's Perseverance rover have confirmed that Jezero Crater was once an ancient Martian lake. Moreover, there is also a large delta formed by a river and evidence of flash floods that carried large boulders into the lake.
October 12, 2021
Like Baily’s Beads
"Like Bailey's Beads," said Meiying Lee, who created this magnificent composite of thin, waning moons.
October 11, 2021
Photosynthesis in Venus’ atmosphere?
Photosynthesis in Venus' atmosphere may be possible, according to a new study. The findings support the idea that microbes could exist and even thrive in the more temperate regions of the planet's cloud layers.
October 11, 2021
Pluto’s atmosphere is disappearing
Pluto's atmosphere is disappearing. The dwarf planet's atmosphere is freezing as it moves farther from the sun in its orbit and falling to the surface.
October 9, 2021
And … action! 1st movie in space underway with Russian crew
A Russian spacecraft launched to the International Space Station on October 5, 2021, carrying an actor and director for the 1st movie in space.
October 8, 2021
Comet or asteroid? This object is both
Comet or asteroid? Both! Some objects blur the lines, including (248370) 2005 QN173, which is active with a long tail but resides in the asteroid belt.
October 8, 2021
Wave clouds from 2 sides of Earth
EarthSky readers on opposite sides of Earth took these two photos of wave clouds on the same day. Wave clouds also go by the name of Kelvin-Helmholtz clouds.
October 8, 2021
2 old open star clusters merging in the Milky Way
An astronomer in Brazil has looked toward a known open star cluster and found 2 old open star clusters, merging in our Milky Way galaxy.
October 7, 2021
