See the top 10 stories of 2025 from EarthSky

View larger. | The Hubble Space Telescope captured this image of the interstellar comet 3I/ATLAS on…

Solar wind ‘U-turn’ spotted by Parker Solar Probe

These images of our star’s solar wind, captured by NASA’s Parker Solar Probe, show a phenomenon…

Earth’s atmosphere sheds onto the moon!

This illustration shows how the solar wind (red) strips ions (blue) from Earth’s upper atmosphere. Some…

Weird, ultra-hot, double-tailed planet surprises scientists

View larger. | Artist’s concept of the double-tailed planet WASP-121 b. The tails span nearly 60%…

Researchers question methane atmosphere on TRAPPIST-1e

Artist’s concept of exoplanet TRAPPIST-1e, about 40 light-years from Earth. A new study urges caution when…

Astronomers create 1st map of the sun’s outer boundary

Artist’s concept of the boundary in the sun’s atmosphere, where the speed of the outward solar…

Astronomers see monster stars from the cosmic dawn

Artist’s concept of a massive star. Did monster stars create the supermassive black holes astronomers see…

This moss survived in space for 9 months

Meet a spreading earthmoss known as Physcomitrella patens. It’s frequently used as a model organism for…

Long-lasting gamma-ray burst is a unique puzzle

Unusually long gamma-ray bursts require more exotic origins than typical gamma-ray bursts. This animation illustrates one…

There might be an ocean on exoplanet TOI-270 d

View larger. | Artist’s concept of TOI-270 d, a sub-Neptune world about 73 light-years away. New…