Alien life? Mammoth new telescope could find it in hours

View larger. | Artist’s concept of the Extremely Large Telescope (ELT). Currently being constructed in Chile,…

Massive collision created Mercury, new theory suggests

View larger. | Artist’s concept of a collision between two rocky bodies in the early solar…

Asteroid 2024 YR4 won’t hit in 2032, but it will be back

The faint dot fixed in the center of this starfield is asteroid 2024 YR4. This is…

See auroras on Neptune for the first time!

At left is the Hubble Space Telescope’s view of Neptune with its blue hue and white…

Surprisingly big organic molecules on Mars: A hint of life?

NASA’s Curiosity rover has found the largest organic molecules on Mars we’ve yet seen. They seem…

Famous, rare ‘pinwheel death star’ isn’t a threat after all

View larger. | Artist’s concept of the Wolf-Rayet 104 pinwheel star system. A new study confirms…

See colorful giant exoplanets in astonishing new Webb images

View larger. | This is the Webb space telescope’s view of the 4 young, colorful giant…

The new hotspots for alien life?

View larger. | Artist’s concept of an Earth-like planet orbiting a white dwarf star. A new…

Cosmic anomaly hints at frightening future for Milky Way

The Giant Metrewave Radio Telescope imaged these giant radio jets stretching 6 million light-years across with…

Most distant known galaxy is mature in a baby universe

EarthSky’s Will Triggs explains what’s so surprising about the discovery of oxygen in the most distant…