Exoplanet

The 2019 Nobel Prize in Physics recognizes three scientists for improving our understanding of the universe's history and Earth's place in the cosmos.

An unexpected discovery is challenging our accepted understanding of how planets form. Astronomers have spotted a gigantic gas planet orbiting a small red dwarf star, which shouldn’t be possible according to current models.

A major component of NASA's WFIRST space telescope reached a major milestone as its advanced coronagraph passed its preliminary design review.

Astronomers from Columbia University have a new theory about what's dimming Tabby's Star – and no, it’s not an alien megastructure.

Water is crucial to life as we know it, so it’s one of the key things astronomers look out for on exoplanets. And now, water vapor has been detected in the atmosphere of a potentially habitable exoplanet for the first time.

If it was in our solar system, the orbit of exoplanet HR 5183 b would swing from the asteroid belt to way out beyond Neptune.

Astronomers use Hubble and Spitzer to forecast tonight's hot Jupiter weather report: cloudy with a chance of rocks.

NASA's Spitzer Space Telescope has provided new insights into a rocky exoplanet that may be very similar to the planet Mercury or Earth's Moon.

Just how common are potentially habitable Earth-like planets? Researchers on a new study claim to have come up with the most accurate estimate yet – and they’re more common than you might think.

Scientists at Cornell University say that life-bearing exoplanets may be detectable by their soft glow. Based on laboratory studies, the team believes that a mechanism that protects organisms from hard ultraviolet radiation could make worlds beyond the solar system radiate a soft, detectable light.

In about five billion years’ time, the Sun will grow into a red giant, destroy the Earth and become a white dwarf star. But according to a new study, any aliens out there might still be able to pick up radio waves from Earth's planetary core – for up to a billion years.

While we have some idea about what kinds of signs of life to look for on other planets, many of these can also be created under natural processes. Now NASA is about to launch a new mission that can help root out these false positives by studying the interactions between stars and their planets.