Using the radial velocity method, an international team of astronomers has discovered a new extrasolar planet orbiting a ...

Now's the time to breathe—finally, calmer days are ahead.

Astrology and time measurement evolved together, creating a celestial calendar divided into four seasons, each with three ...

Neptune, one of the farthest planets from the sun, has the longest orbit, with one year lasting 165 Earth years.

Scientists observed and captured the first clear evidence of auroras on Neptune using the James Webb Space Telescope (JWST), ...

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

Four planets in the solar system are about to appear in alignment in the night sky. Here's how stargazers will be able to see ...

How are you feeling after last week’s full moon in Libra? I have the gift of cosmic forewarning, and am still a bit shook by ...

The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...