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Exoplanets may have more water than we thought — but there's a catch

For years, scientists have speculated about the nature of water on exoplanets, especially on super-Earths and sub-Neptunes — planets larger than Earth but smaller than Neptune. The prevailing view has been that these distant worlds could be covered by vast oceans, potentially making them prime candidates for hosting life. However, a groundbreaking study published in […]

Astronomers baffled by 'fluffy' exoplanet with the density of cotton candy

A newly discovered far-away planet defies planetary formation theories with its extraordinary low density.

Newly discovered Super-Earth has a permanent dark side just like the Moon

It's possible that most habitable planets in the Milky Way are tidally locked.

Ocean world or lava world? Either way, this planet has no "strong signs of life"

Ocean world or lava world? We're not certain yet.

This planet is half lava and it's the most metal thing

When you look at a lot of planets, you're bound to find some unusual ones — but this one is something else.

Mystery of missing exoplanets explained by shrinking atmospheres

In the wise words of George Constanza, it's shrinkage.

Gems in the Sky: James Webb Telescope Discovers Quartz in an Exoplanet's Atmosphere

It's the first time something like this has been discovered.

Astronomers directly image massive exoplanet in radically new way

Star-mapping data and direct imaging could lead to even more exoplanet discoveries.

Water worlds may be much more common in the universe than we thought

More than 5,000 exoplanets have been discovered and confirmed. But figuring out what they look like has been tricky.

James Webb Telescope snaps its first direct image of an exoplanet. Here's why it's such a big deal

Unlike other observations of alien worlds, this is a direct image. It sets the stage for more exciting exoplanet research.

Giant planet still forming around a nearby star could rewrite astronomy textbooks

Scientists have direct photographic evidence of a Jupiter-like protoplanet forming through an until now unproven mechanism.

Exoplanet count eclipses 5,000th discovery

The 5,000th exoplanet could just be the beginning.

New planet found "next door" to our solar system

The planet is close enough

Astronomers spy oblong-shaped planet

WASP-103b bucks the trend when it comes to planet shape.

AI is so good it can spot molecules on exoplanets. One day, it may discover new laws of phyics

AI can reliably spot molecules on exoplanets – and might one day even discover new laws of physics

Stellar pollution shows exoplanets are more diverse than we thought -- but few are like Earth

Exoplanet composition may be much more varied and weird than we thought.

Astronomers find hidden planets in distant radio signals

The magnetic connection of the stars and unseen orbiting planets tipped off the astronomers.

Astronomers find moon-forming disk around exoplanet

The revolving disk holds enough matter to seed three moons the size of Earth's.

The largest planetary ring system we've found would dominate the sky -- if it was in our solar system

When talking about planetary ring systems, Saturn and Jupiter likely spring to mind — they are our closest ringed neighbors, after all. But although impressive, their rings aren’t that large, in the grand scheme of things. Jupiter’s aren’t that large even when judging only by our Solar System. Neptune and Uranus also have rings, but […]

Stellar flares can strip away the atmosphere of planets, make them less habitable

A new study highlights the importance of solar flares and space weather in reducing the habitability of exoplanets.

Astronomers stunned by hellish world where it rains rocks on oceans of molten lava

Scientists hope to verify their observations with the upcoming James Webb Space Telescope in 2021.

'Lonely' Rogue Planet Discovered Wandering the Milky Way

Astronomers have discovered a free-floating planet, not associated with any parent star wandering our galaxy.

New study lists 24 exoplanets that may be better for life than Earth

Isn't this a plot twist?

Machine learning helps identify 50 new exoplanets, more to come

It's not perfect yet, but it's still effective.

Rogue Planets Could Outnumber Stars in the Milky Way

We might have to revise the commonly accepted image of planets orbiting a parent star.

Astronomers may have found a twin solar system thousands of light-years away

Observations suggest that the exoplanet and its parent star are strikingly similar to Earth and the Sun.

Scientists find extreme exoplanet raining with iron

On this ultra-hot gas giant, the weather report for today is cloudy, with a chance of molten iron falling from the sky.

One year on this exoplanet lasts only 18 hours

The planet could fall into its host star in the next decade.

The Exoplanet Hunter's Toolkit: the science of searching for other worlds

The search of other worlds is a field of science on the cusp of a revolution. By unpacking the exoplanet hunters’ toolkit we can examine the techniques that are bringing closer than ever to understanding our place in the Universe.

New European exoplanet-hunting telescope launches into space

The ESA’s CHEOPS telescope has finally launched kick-starting the next phase in exoplanet investigations.

Exoplanet researcher awarded for groundbreaking work

As the Hans Sigrist Prize is claimed by Ignas Snellen for groundbreaking exoplanet research, the message is clear--the search for other worlds is heating up.

Hunting for exoplanets: past and future

The last decade of space exploration has exceeded even our wildest expectations. And this is only the beginning.

There are over 700 quintillion planets in the universe -- but there's no place like home

The number of planets in the universe is extremely mind-boggling.

How scientists detected water on an alien planet for the first time

K2-18 b is probably the most Earth-like planet we've discovered so far.

Spitzer confirms: no atmosphere on nearby exoplanet

Christened LHS 3844b, the exoplanet is 1.3 times larger than our planet and orbits its star in 11 hours.

NASA finds new exoplanet that orbits three different suns

The planet is so close to its host star that it only has a 5.36 day-long orbit. At this distance, surface temperatures should hover around 428 Kelvin (155 °C; 311 °F).

TESS telescope discovers three intriguing close-by exoplanets

The solar system is very different from our own.

NASA produces stunning map of all the exoplanets we've discovered

The map is amazing.

Alien-world-hunting satellite finds its first Earth-sized planet

Researchers had hoped that at least 300 of them would be the size of our home planet. Well, they found one.

Astronomers observe exoplanet for the first time using optical interferometry

The novel method can reveal spicy new insights into the lives of planets orbiting stars far, far away.

Researchers find a new class of planets, made of sapphires and rubies

Ca-ching!

Helium exoplanet inflates like a balloon

Helium was predicted to be one of the most common elements of exoplanets, but was only recently observed for the first time.

Earth's green history may help scientists spot plant life on alien planets

Thanks, plants!

Scientists find baby exoplanets using a completely new method

The method is a lot like tracing the ripples made by a rock thrown in a pond.

Cloud-free exoplanet provides best evidence of sodium in planets outside our solar system so far

A cloudless exoplanet has become a benchmark for astronomers to gauge sodium content in alien worlds.

Astronomers find helium in exoplanet's atmosphere for the first time

It took abnormally look considering helium is the 2nd most abundant element in the universe.

Kepler -- the spacecraft that discovered thousands of alien worlds -- is running on its last drops of fuel

It will have time to find just a couple more candidate exoplanets.

15 new planets discovered -- one is potentially habitable

Three of the newly-discovered planets are so-called super-Earths.

Hunt for planets through Kepler's data with this newly released Google code

Space exploration made easy.

Astronomers find unique water-rich exoplanet similar in mass with Saturn

This odd world hundreds of light-years away could teach us about how planets in our solar system formed.

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