April 22 is traditionally known as Earth Day, the occasion where we pause as temporary travelers on our 'blue marble' to ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

The Hubble Space Telescope celebrates 35 years of groundbreaking discoveries, stunning imagery, and a lasting impact on ...

The HiRise camera is living up to its name, capturing a rare look at the veteran rover from way up in Martian orbit.

For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable ...

The internet has been abuzz with the possibility of sky watchers seeing a “smiley face” in the eastern sky above the horizon ...

Jupiter and Mars shine in the evening, more planets gather in the morning, and the Eta Aquariid meteors join in.

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

While much remains unknown, it is intriguing that two ancient meteorite impacts, the 3.5-billion-year-old North Pole impact ...

A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.

Apollo 8, 1968. The first view by human eyes of Earth. The following is the transcript of the conversation between the ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...