Mercury is quickly dropping out of sight, so catch this early-morning planet while you still can. Today you'll find the solar ...

Pioneer 10, now 7.5 billion miles (12.10 billion kilometers) from Earth, has been silent since March. Currently, a radio signal traveling at the speed of light takes more than 11 hours to reach ...

A full moon is not uncommon, this month's 'Flower Moon' will be the fifth of the year after last month's Pink Moon. A full ...

Earth's atmosphere pulses in sync with the sun's fiery outbursts, indicating it is more sensitive to solar activity than previously thought, according to new research.

Most astronomers agree that life is likely common throughout the universe. While Earth is the only world known to have life, ...

The Space Telescope Science Institute in Baltimore, which operates the Webb and Hubble telescopes, released a video of ...

An international team of astronomers reports the discovery of two new exoplanets, a few times more massive than Earth, ...

NASA chiefs took advantage of an unusual cosmic event to get their first detailed glimpse inside the mysterious planet this ...