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What the Chinese Zhurong rover found beneath Mars’ surface
China's Zhurong rover has found polygonal wedges below the surface in Utopia Planitia on Mars. Freeze-thaw cycles of water and ice likely created the polygons.
December 3, 2023
EarthSky’s lunar calendar: How to use this great gift!
Follow the moon! Here’s why you need an EarthSky lunar calendar, the top tips for using it, and where you can order one.
December 1, 2023
Space Force to track ‘abnormal objects of unknown origin’
The U.S. Space Force wants to track objects near Earth that exhibit 'abnormal observables' and are of 'unknown origin.' Could there be a connection to UAP?
November 30, 2023
Nearby exoplanet is Earth twin, but hot as a pizza oven
Astronomers using the Hubble Space Telescope measured the exact diameter of a nearby Earth-sized exoplanet. The sizzling world is too hot for life, however.
November 29, 2023
Where is Voyager 2 going? And when will it get there?
Where is Voyager 2 going? It's not aimed for any particular star, but in 40,000 years it will pass within 1.65 light-years of the star Ross 248.
November 28, 2023
World’s largest optical telescope – the ELT – going up in Chile
The world's largest optical telescope will be the Extremely Large Telescope (ELT), currently under construction in the Chilean desert.
November 28, 2023
Shrinking exoplanets? Here’s how it happens
Scientists say they may have solved the mystery of shrinking exoplanets. Radiation from the cores of less massive sub-Neptunes pushes away their atmospheres.
November 26, 2023
How to see Earth’s shadow at sunrise and sunset
Just before sunrise and after sunset, you can spot Earth's shadow. Look west at sunrise and east at sunset. Learn more about Earth's shadow here.
November 26, 2023
‘Bouncing comets’ could spread the seeds of life
Researchers in the U.K. said in a new study that 'bouncing comets' in some planetary systems could deliver prebiotic molecules needed for life to young planets.
November 24, 2023
Salt glaciers on Mercury could harbor habitable niches
Researchers have found evidence of glaciers on Mercury. They are composed of salt, not ice, and could potentially create habitable niches for microorganisms.
November 22, 2023
