Astronomers want to collect as much data as possible using as many systems as possible. Sometimes that requires coordination ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

A new candidate exoplanet appears to almost uncanny similarities to Earth — but may differ in at least one major way.

NASA has announced the discovery of an Earth-like planet orbiting a Sun-like star that shares several other similarities with ...

It was more than 30 years ago when the first ever exoplanet was discovered. Since then, astronomers have discovered more than 6,000 worlds! AccuWeather's Anna Azallion counts down the top exoplanets.

At the beginning of the exoplanet age, the goals were fairly simple. The first was to find as many of them as possible to flesh out our understanding of the exoplanet population. The second was to ...

Quantum computers may help us see more exoplanets – and see them in more detail too. Astronomers have now found thousands of planets beyond our solar system, but they anticipate that there are ...

Daniel Apai is a professor of astronomy, planetary sciences and optical science at the University of Arizona. He receives funding from NASA. Exoplanets are worlds that orbit other stars. They are very ...

In a zesty new discovery, scientists have unearthed a strange lemon-shaped exoplanet. It is unlike one we have seen before, challenging many of the previously held assumptions about planetary ...

It was almost 100 years ago that Clyde W. Tombaugh discovered Pluto. That was the last planet found until 1992, when humans found another one. But this new planet wasn't in our solar system—it was ...