The orbit of a planet can cause a star to wobble around in space in relation to nearby stars in the sky.

Our Sun is just one out of over 200 billion stars in our galaxy, the Milky Way. The Sun is located in the Orion arm of our galaxy about 25,000 light years from the center of the Galaxy. Kepler will...

This artist's animation flies through the Kepler-20 star system, where NASA's Kepler mission discovered the first Earth-size planets around a star beyond our own. The system is jam-packed with five...

There are water worlds, lava planets, egg-shaped worlds, planets with multiple suns, and even planets with no sun at all! What can we learn from this weird, wondrous variety?

This slide explains the three different types of black holes.

Depiction of a world completely covered with ocean.

On this episode of Q&Alien, we talk about what the term "habitable zone" means - and what it doesn't.

This is the animated storybook tale of the Spitzer spacecraft and its exploits as part of the space telescope superteam known as NASA’s Great Observatories, which also includes Hubble, Chandra and ...

We've wanted to study the TRAPPIST-1 exoplanets with the James Webb Space Telescope since its Christmas Day launch in 2021. We expect to see new science on the planets in the coming year.

Volunteers using DiskDetective, a NASA-sponsored citizen science website to find potential planetary nurseries, have made 1 million classifications in less than a year. Goddard astrophysicist Marc ...

This slide explains the radial velocity method for exoplanet detection. 

Video feature describing the process and implications of the planetary color analysis.

Light from a distant star is bent and focused by gravity as a planet passes between the star and Earth.

Scientists using NASA’s Hubble Space Telescope have found evidence that a planet orbiting a distant star may have lost its atmosphere but gained a second one through volcanic activity. 

Launched in March 2009, NASA’s first planet-hunter confirmed more than 2,600 planets beyond our solar system. "Many stars have planets. A lot of these planets are Earth-sized. That's Kepler's legac...

Watch what happens in the life of a star and its planets. This version of the video has no text overlays.

This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. It is the hottest gas giant planet discovered so far.

An animation of an imagined Earth-sized exoplanet.

Animation of Kepler spacecraft slowly rotating in space.

The Kepler mission found 1,284 new planets via the transit method. When a planet passes directly between its star and an observer, it dims the star's light by a measurable amount.

HD 80606b is a gas giant planet in an eccentric orbit around its star. Every 111 days, the planet passes within 2.8 million miles of the star's surface. Animated without dissolves.

A detailed explanation into the workings of the coronagraph and how it can help directly image exoplanets.

If life exists on some of the exoplanets that Kepler finds, it may exist in forms similar to what we see in some of Earth's most extreme conditions.

NASA Associate Administrator Thomas Zurbuchen and TESS Project Scientist Padi Boyd discuss Kepler's legacy, the search for life and the big question: Are we alone?

How do astronomers take actual pictures of exoplanets, and why is it such a difficult thing to do? Josh from PlanetQuest talks about what's involved in making an exoplanet portrait.