New research has prompted a rethink of the theory that gaps in planet-forming disks around young stars mark spaces where planets are being created.

If giant planets in other star systems lose their moons, the freed objects could become “ploonets,” and current telescopes may be able to find them.

Scientists have uncovered evidence of moon formation in a solar system for the first time. In the star system PDS 70, approximately 370 light-years away, ...

Scientists have identified two Earth-like planets around a nearby sun called Teegarden's star.

Using Earth's most powerful array of radio telescopes, astronomers have made the first observations of a circumplanetary disk of gas and dust like the one that is ...

... Group (OPAG) Spring 2019 Findings. The Outer Planets Assessment Group (OPAG) Spring 2019 findings have been posted to the OPAG website at ...

New research into waves that travel through Earth's magnetosphere deepen our understanding of the region and its interaction with our own planet, and open ...

Two NASA space telescopes have teamed up to identify, for the first time, the detailed chemical "fingerprint" of a planet between the sizes of Earth and Neptune.

Two newly discovered planets have about the same "weight" – or mass – as planet Earth.

The next full Moon will be on Tuesday afternoon, July 16, 2019, at 5:38 PM EDT. The Moon will appear full for about three days around this time, from Monday ...

For future astronauts bound for Mars it will surely rank as a positive: when they sit down to dinner on the barren red planet, they should at least have plenty of ...

A new planet-hunting algorithm suggests that at least 9 percent of nearby stars could host planets orbiting out of sight — and the stars' chemistry could help find ...

The 'Goldilocks' zone is the distance of a planet from its star that is just right for liquid water. But the latest findings suggest the picture might not be so simple.

The exoplanet between the sizes of Mars and Earth orbits a bright, cool, nearby star with two other planets. L 98-59b is the tiniest discovered by TESS to date.

Zac Cooper and Shelly Carpenter begin to drill below the Alaskan ice tunnel toward the cryopeg and its salty subzero water. Researchers are careful to sterilize ...

Scientists are building a case for a mission to Neptune, an ice giant that's only been visited by a spacecraft once. But the window to act is closing.

The AGU Fall Meeting is returning to San Francisco this year (December 9-13, 2019), with its centennial edition. Planetary sciences are part of the celebrations.

A storm of cosmic impacts may have ended relatively early on Mars, suggesting that the Red Planet was habitable longer than scientists previously thought, ...

A planet slightly smaller than Earth and orbiting a nearby star has been detected by NASA's Transiting Exoplanet Survey Satellite (TESS), a notable ...

Some sort of a heat wave warms the rings of Uranus, even though the planet orbits far away from the sun. New heat images of the planet, obtained by two ...

NASA's Psyche mission to an asteroid that could be full of nickel, iron and precious metals such as platinum and gold could jump-start the space mining industry.

The Curiosity mission's scientists picked up the signal this week, and are seeking additional readings from the red planet.

A new study finds that the tidal forces of the planets influence the rhythm of the sun's magnetic activity.

(CNN) Here's what you might have missed Wednesday on CNN: -- Three Russians and a Ukrainian will face murder charges in the 2014 downing of Malaysia ...

The moon and a bright Saturn will meet in the sky the night of June 18.

NASA wouldn't let our reporter touch the Apollo moon rocks. Here's why that's a good thing.

United Nations climate experts on Friday expressed alarm—but not surprise—over the extreme heatwave engulfing Europe, as temperatures in parts of France ...

SPACE MINING AND MORE - Earth Science and Engineering exhibited at 5 stands and delivered 10 talks across the Festival.

Breakthrough Listen project found no evidence of alien civilisations on 1327 stars.

If you look up to the eastern sky tonight, you're likely to spot one of the biggest planets at its brightest. Jupiter, the fifth planet from the sun and largest in our solar ...

The two planets appear to have cleared a wide gap in their young star's protoplanetary disk. This is the first-ever observation of this behavior.

A regular alignment of the planets—no, it's not pseudoscience—makes a strong enough tug to regulate the Sun's 11- and 22-year cycles.

NASA's Transiting Exoplanet Survey Satellite, TESS, has discovered its first Earth-sized exoplanet. The planet, named HD 21749c, is the smallest world outside ...

In order to grow to Jupiter size or larger, a gas giant planet must slurp large quantities of hydrogen and other gases from the disk in which it forms. Astronomers ...

Three planets are orbiting two suns in the Kepler-47 system. Astronomers discovered the third planet, a Neptune-to-Saturn-size world lurking between two ...

Where is complex alien life hanging out in the universe? Likely not on planets stewing in toxic gases, according to a new study that dramatically reduces the ...

AUSTIN, Texas — Astronomers at The University of Texas at Austin, in partnership with Google, have used artificial intelligence (AI) to uncover two more hidden ...

Pluto has always been an oddball, but here's why it's no longer considered a planet.

As planets form in the swirling gas and dust around young stars, there seems to be a sweet spot where most of the large, Jupiter-like gas giants congregate, ...

Using data from NASA's Kepler space telescope, citizen scientists have discovered a planet roughly twice the size of Earth located within its star's habitable zone ...

Despite being the very first planet candidate discovered by NASA's Kepler space telescope, Kepler-1658b had a rocky road to confirmation. It moved from planet ...

Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth's size.

An exoplanet smaller than Neptune with its own atmosphere has been discovered in a region close to its star where no Neptune-sized planets would normally ...

The Very Large Telescope imaged Planets PDS 70b and PDS 70c about 370 light years away creating a gap in the gas and dust disk around their star.

A team has discovered two Jupiter-sized planets about 150 light years away from Earth that could reveal whether life is likely on the smaller planets in other ...

Anne is a planet hunter, although she feels like that makes her work sound a bit too exciting. Every day, she sits at her laptop running an AI algorithm she wrote.

Deep in the heart of alien worlds, crystals form under pressures up to 40 million times more intense than the atmospheric pressure on Earth, and as much as 10 ...

The odds of an atmosphere forming around an Earth-like exoplanet are even slimmer than previously thought, a new study suggests.

Astronomers who study stars have contributed to the analysis of a planet discovered by NASA's new TESS Mission. It's the first planet identified by TESS for ...

Astronomers identify the most promising stars for TESS to search for planets just a bit larger than our own and that receive radiation from their star equivalent to ...

Since its launch a decade ago, NASA's planet-hunting Kepler spacecraft has found thousands of worlds, revealing that across the galaxy, planets are more ...

So, maybe we are alone after all. The number of planets in the universe that could sustain life is much smaller than had been thought, scientists said.

Planets between the size of Neptune and Saturn shouldn't be rare after all, scientists realize, thanks to a trick of magnification.

Infant planets are forming in a system 370 light-years away, and they're shedding light on the early lives of Saturn and Jupiter in our solar system.

Three newly discovered planets, beyond our solar system, have masses comparable to our own Neptune.

Scientists are still hunting for exoplanets in the data gathered by the Kepler Space Telescope. Two new papers identify 18 relatively small examples.

An 18-year-old high school senior has won a $250000 prize for calculating the potential for finding more planets outside our solar system using data from ...

Planets orbiting two stars could hang on to their moons despite the double gravitational tug from their stars. Such moons could give rise to life.

A NASA telescope that will give humans the largest, deepest, clearest picture of the universe since the Hubble Space Telescope could find as many as 1400 ...

To confirm the presence of a planet, it is necessary to wait until it has made one or more revolutions around its star. This can take from a few days for the closest ...

Small, hardy planets packed with dense elements have the best chance of avoiding being crushed and swallowed up when their host star dies, new research ...

Starshade exoplanet-hunting missions may be technologically daunting, but they're not beyond NASA's reach, recent research suggests. Such a mission would ...

The fantastical planets in Star Wars preceded our discovery of real planets outside our solar system...but the facts aren't far from fiction.

The number of planets detected around other stars - or exoplanets - is set to hit the 4000 mark.

When NASA's James Webb Space Telescope launches in 2021, it will open a new window on exoplanets, observing them in ways they have never been seen ...

New work suggests that planets that are solid all the way through and have low masses may have the best chance of surviving the surge of tugs produced by ...

Based on preliminary results from a new Gemini Observatory survey of 531 stars with the Gemini Planet Imager (GPI), it appears more and more likely that large ...

Scientists have found evidence that Mercury's inner core is indeed solid and that it is very nearly the same size as Earth's inner core.

BERKELEY, Calif. — The nearest exoplanet to Earth may have a neighbor. Astronomers have detected a candidate planet circling the star Proxima Centauri, ...

The hunt for nearby exoplanets has just heated up considerably. A new instrument designed to find potentially habitable alien worlds in Alpha Centauri, the ...

Astronomers say the mission will provide more accurate data in the search for extraterrestrial life outside of our solar system.

Two of the planets which are orbiting the star Kepler 107 could be the result of an impact similar to that which affected the Earth to produce the moon.

The Double Asteroid Redirection Test (DART) – NASA's first mission to demonstrate a planetary defense technique – will get one chance to hit its target, the ...

Water worlds that each possess thousands of times more water than Earth does may be more common than Earth-like rocky planets in the Milky Way galaxy, ...

Near-Earth objects (NEOs) are asteroids and comets that orbit the Sun like the planets, but their orbits can bring them within 30 million miles of Earth's orbit.

The Next Full Moon is a Blue Moon, the Flower Moon, the Corn Planting Moon, the Milk Moon and Buddha Purnima.

NASA has established an independent Planetary Protection Review Board to review established guidelines for planetary protection and recommend any ...

Rocky, Earth-like planets orbiting our closest stars could host life, according to a new study that raises the excitement about exoplanets.

We are delighted to announce that Laurent Montési has just taken over as the Editor-in-Chief of Journal of Geophysical Research: Planets. We asked him some ...

What kinds of stars are most likely to host habitable planets? A new study finds a particular class of stars called K stars, which are dimmer than the Sun but ...

The CLEVER Planets (Cycles of Life-Essential Volatile Elements in Rocky Planets) team and Department of Earth, Environmental and Planetary Sciences at ...

The Kepler space telescope can no longer search for planets orbiting other stars. After 9½ years, NASA's premier exoplanet-hunter is out of gas. NASA officials ...

Astronomers have found the corpse of a dead planet orbiting at breakneck pace around a dead star in a dead solar system.

AUSTIN, Texas — Newly discovered layers of ice buried a mile beneath Mars' north pole are the remnants of ancient polar ice sheets and could be one of the ...

A team led by an undergraduate student at the University of Texas, Austin has found two new planets by using artificial intelligence to sift through data from ...

Astronomers say they have the first evidence of a collision between two planets in a distant solar system.

Space enthusiasts and sky-watchers around the world are in for a treat as the largest planet in the solar system puts on a show in June. Jupiter will be its ...

A black hole and its shadow have been captured in an image for the first time, a historic feat by an international network of radio telescopes called the Event ...

The only small satellite in orbit that can also look for new planets beyond the solar system, ASTERIA recently peered down at Earth to capture an image of a ...

Researchers have spotted the formation sites of planets around a young star resembling our sun. Two rings of dust around the star, at distances comparable to ...

There could be a planet hiding out on the distant frontiers of our solar system. Astronomers have published new details about what it probably looks like.

The awesome vastness of time and space is laid out in its full, jawdropping incomprehensibility by Prof Brian Cox, the Attenborough of outer space. Rebecca ...

Data from a world-wide array of telescopes revealed Barnard's Star b, a frozen, dimly lit world. The newly discovered planet is the second-closest known ...

Researchers are offering new details about the suspected nature and location of a ninth planet in the solar system.

Laying out two decades of evidence for the mysterious “Planet 9,” a team of astronomers predicts that if it exists, it's likely to be discovered within the decade.

On its final flyby of Saturn's largest moon in 2017, NASA's Cassini spacecraft gathered radar data revealing that the small liquid lakes in Titan's northern ...

Most planets can exist for a long, long time, but they can't last forever. Hungry stars and violent planetary neighbors can completely destroy a world, while ...

There's way more to Saturn than its rings. The planet also boasts a collection of exotic, and still mysterious, moons.

Irvine, Calif., Feb. 20, 2019 - Astronomers from institutions including the University of California, Irvine have begun routine science operations with the Habitable ...

Auroras at Jupiter's poles are heating the planet's atmosphere to a greater depth than previously thought — a rapid response to the solar wind.