Measuring distances across the universe is much more challenging than measuring distances on Earth. Is a brighter star closer ...

An incredibly rare sight can be seen in the Australian skies until Thursday - and won't reappear for another 800,000 years.

An incredibly rare sight can be seen in the Australian skies until Thursday - and won't reappear for another 800,000 years.

Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars.

It got within 140 million km on 14 January, but as it heads off again into the void of space, the southern hemisphere is best ...

Get ready for a deep partial solar eclipse on March 29, 2025, which will occur at sunrise in North America and mid-morning ...

From Jan. 11 to 15, 2025, a bright comet surged through images from the ESA (European Space Agency) and NASA SOHO (Solar and Heliospheric Observatory) spacecraft. Called C/2024 G3 (ATLAS), the comet ...

Look up! Six planets grace the sky this month in what’s known as a "planetary parade," and most will be able to be seen with ...

February kicks off what astronomers call “galaxy season” in the Northern Hemisphere. This time of year offers the best ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

With frigid temperatures and dangerously cold wind chills, you may want to wait a few more days to check them out. Don't ...

The first full moon of the calendar year is January’s wolf moon. Its name derives from the idea that wolves could be ...