A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

An international team of astronomers has shown for the first time that it is possible to map exoplanets using a technique ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. The Hubble Telescope and its Wide Field Camera 3 got an incredible view of the comet ...