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Extrasolar Planets News
January 28, 2020

Top Headlines
 

Scientists have finally scaled the solar system's equivalent of the Rocky ... read more
NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be ... read more

Planet-Mass Objects in Extragalactic Systems

A research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With the existing observational ... read more
The first evidence of a giant planet orbiting a dead white dwarf star has been found in the form of a disc of gas formed from its ... read more
Latest Headlines
updated 1:49pm EST

Earlier Headlines
 

NASA's TESS Helps Astronomers Study Red-Giant Stars, Examine a Too-Close Planet

Astronomers have been studying two red-giant stars -- older, 'retired' stars no longer burning hydrogen in their cores. The study details an interesting case of planetary evolution and ... read more

'Are We Alone?' Study Refines Which Exoplanets Are Potentially Habitable

Researchers are first to combine 3D climate modeling with atmospheric chemistry to explore the habitability of planets around M dwarf stars, which comprise about 70% of the total galactic ... read more

Distant Worlds Under Many Suns

An astrophysicist has discovered many new multiple star systems that contain exoplanets. For this, he searched more than 1,300 exoplanet host stars. He found that 15 per cent of those stars have at ... read more

Views of Giant Planet in Wild Orbit Would Be Unparalleled

Contrary to previous thought, a gigantic planet in wild orbit does not preclude the presence of an Earth-like planet in the same solar system -- or life on that planet. What's more, the view ... read more

Worldwide Observations Confirm Nearby 'Lensing' Exoplanet

Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing. The exoplanet has a mass ... read more

Even 'Goldilocks' Exoplanets Need a Well-Behaved Star

Scientists model how the 'weather' on a star impacts exoplanets to see if even those thought to be in habitable zones could suffer from solar storms. They expect their work to help narrow ... read more

Simulations Explain Giant Exoplanets With Eccentric, Close-in Orbits

As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star. Smaller planets should be more susceptible to ... read more

Ancient Stars Shed Light on Earth's Similarities to Other Planets

Earth-like planets may be common in the universe, a new study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not ... read more

Gas 'Waterfalls' Reveal Infant Planets Around Young Star

For the first time, astronomers have witnessed 3D motions of gas in a planet-forming disk. At three locations in the disk around a young star called HD 163296, gas is flowing like a waterfall into ... read more

Liquifying a Rocky Exoplanet

A hot, molten Earth would be around 5% larger than its solid counterpart. The difference between molten and solid rocky planets is important for the search of Earth-like worlds beyond our Solar ... read more

2019 Nobel Prize in Physics: Evolution of the Universe and Discovery of Exoplanet Orbiting Solar-Type Star

This year's Nobel Prize in Physics is being awarded "for contributions to our understanding of the evolution of the universe and Earth's place in the cosmos," with one half to ... read more

Saturn Surpasses Jupiter After the Discovery of 20 New Moons

Move over Jupiter; Saturn is the new moon king. A team has found 20 new moons orbiting Saturn. This brings the ringed planet's total number of moons to 82, surpassing Jupiter, which has ... read more

Many Gas Giant Exoplanets Waiting to Be Discovered

There is an as-yet-unseen population of Jupiter-like planets orbiting nearby Sun-like stars, awaiting discovery by future missions like NASA's WFIRST space telescope, according to new models of ... read more

A Planet That Should Not Exist

Astronomers detected a giant planet orbiting a small star. The planet has much more mass than theoretical models ... read more

The Rare Molecule Weighing in on the Birth of Planets

Astronomers using one of the most advanced radio telescopes have discovered a rare molecule in the dust and gas disk around a young star -- and it may provide an answer to one of the conundrums ... read more

Saturn's Rings Shine in Hubble's Latest Portrait

Saturn is so beautiful that astronomers cannot resist using the Hubble Space Telescope to take yearly snapshots of the ringed world when it is at its closest distance to Earth. These images, however, ... read more

A Goldilocks Zone for Planet Size

Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for ... read more

Water Detected on an Exoplanet Located in Its Star's Habitable Zone

Astronomers have detected water vapor on the exoplanet K2-18b -- a major discovery in the search of alien ... read more

Hints of a Volcanically Active Exo-Moon

A rocky extrasolar moon (exomoon) with bubbling lava may orbit a planet 550 light-years away from us. This is suggested by an international team of researchers on the basis of theoretical predictions ... read more

Earth's Fingerprint Hints at Finding Habitable Planets Beyond the Solar System

Astronomers have assembled a 'fingerprint' for Earth, which could be used to identify a planet beyond our Solar System capable of supporting ... read more

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