Reforestation in US East helped keep it cool

According to new research, reforestation in the eastern U.S. helped counter rising temperatures in the 20th century. Learn more here.

How Pluto got its heart

The New Horizons spacecraft saw a heart-shaped feature on Pluto during its 2015 flyby. New computer simulations suggest an impact created Pluto's heart.

Meet Sextans, the constellation of the sextant

Sextans the Sextant is in a dim patch of sky between Leo and Hydra that is home to some interesting galaxies, and one of the largest supermassive black holes.

Large asteroid safely passed Earth: See pic here!

Check out the image of the large asteroid 2013 NK4 - which is about 2,000 feet (610 meters) wide - that safely passed Earth on April 15, 2024.

Did this Mars rock once lie along an ancient lakeshore?

NASA's Perseverance rover sampled an unusual Mars rock called Bunsen Peak. It is rich in carbonate and silica and likely came from an ancient lakeshore beach.

3 young planetary systems revealed by Webb telescope

NASA's Webb space telescope looked for baby planets in the protoplanetary disks in 3 young planetary systems. It didn't find any, and scientists explain why.

Total solar eclipse pics and video from the EarthSky community

Check out these wonderful total solar eclipse pics and video from our EarthSky community! See our editor's picks that capture the partial and total phases.

Death Valley is in bloom, temporary lake still there

The heavy rains in Death Valley National Park over the past 6 months created a temporary lake and now a profusion of wildflowers.

Enceladus hosting cell-sized particles, a hint of life?

A new study of Cassini data has revealed bacteria-sized particles in the plumes of Saturn's ocean moon Enceladus. Could they be evidence of microbial life?

Use the Big Dipper to find the Little Dipper

Polaris marks the end of the handle of the Little Dipper. The 2 outer stars in the bowl of the Big Dipper point to Polaris and help you find the Little Dipper.