Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

How unfortunate that combust — an astronomically useful adjective — has become all but obsolete. It was once defined as referring to the moon or a planet that is invisible to the naked eye because of ...

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Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

February ends with a treat for sky-gazers: a parade of seven planets across the night sky, including Mercury, Uranus and Neptune alongside typically bright planets such as Mars, Venus, Jupiter and ...