New research shows that life in Europa's ocean could be maintained by chemical nutrients sinking into the ocean from the icy crust above.
The post Life in Europa’s ocean still possible, new research suggests first appeared on EarthSky. Continue Reading »
January 28, 1986. On today's date 40 years ago, the Space Shuttle Challenger (mission STS-51-L) exploded and broke apart 73 seconds into its flight.
The post Challenger disaster: 40 years ago today first appeared on EarthSky. Continue Reading »
Sun news January 28, 2026: Auroras are possible today, with a G1 (minor) geomagnetic storm in the forecast thanks to solar wind from a coronal hole.
The post Sun news: Incoming solar wind brings aurora chance today first appeared on EarthSky. Continue Reading »
Visible planets and night sky guide. Tonight, look for 3 bright stars near the gibbous moon: Capella, Aldebaran and Betelgeuse. You can see them until dawn.
The post Visible planets and night sky guide for January and February first appeared on EarthSky. Continue Reading »
The galactic anticenter is opposite the Milky Way's center from our viewpoint on Earth. The closest bright star to the anticenter is Taurus the Bull's Elnath.
The post Elnath is a bright star close to the galactic anticenter first appeared on EarthSky. Continue Reading »
Have you ever looked down at your shadow and noticed it looks like you have a bright halo around your head? That's heiligenschein.
The post Heiligenschein is the halo around your head’s shadow first appeared on EarthSky. Continue Reading »
Guided by astronomers, AI combed Hubble's archive - some 100 million Hubble image cutouts - and identified more than 1,300 unusual objects.
The post AI combed Hubble’s archive, saw hundreds of cosmic anomalies first appeared on EarthSky. Continue Reading »
Scientists have discovered a mysterious bar of iron hidden within the iconic Ring nebula. It's not yet clear what created it.
The post Iconic Ring nebula holds a mysterious iron bar, study finds first appeared on EarthSky. Continue Reading »
Quantum computers and exoplanets: Distant planets around other stars are difficult to image. But quantum computers could help astronomers see them better.
The post Quantum computers and exoplanets: New view of distant worlds first appeared on EarthSky. Continue Reading »
Evidence for an ancient Mars ocean keeps growing. Deltas in the Valles Marineris canyon along the former shoreline show that the ocean covered half the planet.
The post New evidence for ancient Mars ocean found in giant canyon first appeared on EarthSky. Continue Reading »
New research shows that life in Europa's ocean could be maintained by chemical nutrients sinking into the ocean from the icy crust above.
The post Life in Europa’s ocean still possible, new research suggests first appeared on EarthSky. 
January 28, 1986. On today's date 40 years ago, the Space Shuttle Challenger (mission STS-51-L) exploded and broke apart 73 seconds into its flight.
The post Challenger disaster: 40 years ago today first appeared on EarthSky. 
Sun news January 28, 2026: Auroras are possible today, with a G1 (minor) geomagnetic storm in the forecast thanks to solar wind from a coronal hole.
The post Sun news: Incoming solar wind brings aurora chance today first appeared on EarthSky. 
Visible planets and night sky guide. Tonight, look for 3 bright stars near the gibbous moon: Capella, Aldebaran and Betelgeuse. You can see them until dawn.
The post Visible planets and night sky guide for January and February first appeared on EarthSky. 
The galactic anticenter is opposite the Milky Way's center from our viewpoint on Earth. The closest bright star to the anticenter is Taurus the Bull's Elnath.
The post Elnath is a bright star close to the galactic anticenter first appeared on EarthSky. 
Have you ever looked down at your shadow and noticed it looks like you have a bright halo around your head? That's heiligenschein.
The post Heiligenschein is the halo around your head’s shadow first appeared on EarthSky. 
Guided by astronomers, AI combed Hubble's archive - some 100 million Hubble image cutouts - and identified more than 1,300 unusual objects.
The post AI combed Hubble’s archive, saw hundreds of cosmic anomalies first appeared on EarthSky. 
Scientists have discovered a mysterious bar of iron hidden within the iconic Ring nebula. It's not yet clear what created it.
The post Iconic Ring nebula holds a mysterious iron bar, study finds first appeared on EarthSky. 
Quantum computers and exoplanets: Distant planets around other stars are difficult to image. But quantum computers could help astronomers see them better.
The post Quantum computers and exoplanets: New view of distant worlds first appeared on EarthSky. 
Evidence for an ancient Mars ocean keeps growing. Deltas in the Valles Marineris canyon along the former shoreline show that the ocean covered half the planet.
The post New evidence for ancient Mars ocean found in giant canyon first appeared on EarthSky.