Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these ...

The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around in saucer-shaped spacecraft. In fact, the life that could be – emphasis ...

An illustration shows what exoplanet K2-18b might look like based on data from NASA's James Webb Space Telescope. K2-18b is 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

A FIERY hell-world that would instantly roast visitors alive has a vast lava ocean – and may be packed with rare gems. The ...

Many planets featured in Star Trek TNG share traits that scientists now look for when identifying exoplanets: rocky terrain, ...

Using direct imaging, astronomers have found a brown dwarf that could help test technology for taking snapshots of Earthlike ...

Scientists have detected the first direct evidence of a coronal mass ejection from a star beyond our Sun, specifically the M dwarf StKM1-1262. This ma ...

To test this idea, the new study looks at an exoplanet known as VHS 1256b. It has a mass of around 20 Jupiters and is one of ...

Three decades ago, in 1995, humankind discovered the first planet beyond the borders of our solar system. It's called 51 Pegasi b, and it spins around its main-sequence star (meaning not unlike our ...