Generally mild weather and increasing hours of darkness make September a great month for observing, and this year, there's a ...

The universe’s first rocky planets may have gotten their start astonishingly early — perhaps only 100 million years after the ...

An international team led by researchers from the University of São Paulo (USP) in Brazil has developed an innovative method ...

Astronomers at Lund University in Sweden have found evidence of exocomets—comets in other solar systems—orbiting a young star ...

From Mercury's cratered surface to Neptune's deep blue atmosphere, NASA's stunning images reveal the striking beauty and diversity of all eight planets.

Rocky planets may have been able to start forming just 100 million years after the Big Bang, thanks to enormous early supernovae that scattered planet-building elements across space. Simulations found ...

Wandering planets are not likely to be captured because the planet would have to lose energy to become gravitationally bound.

Heading into the start of fall, it’s time to check the calendar for some astronomical events. Related video above: New images ...

Some planets orbit so close to their stars that intense radiation should strip away their atmospheres. Yet several of these scorching, lava-covered worlds still retain thick gaseous envelopes, ...

September brings the autumnal equinox, signaling the official start of fall in the Northern Hemisphere. The harvest moon and ...

The last five-planet alignment occurred in June 2022, marking the first time in 40 years since the last celestial spectacle took place A major part of our solar system will be visible right outside ...