Gas Giant Exoplanets

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Artist's concept shows the red-dwarf star, TRAPPIST-1, at the upper left, with two large dots on the face of the disk representing transiting planets; five more planets are shown at varying positions descending toward the lower right as they orbit the star. Artist's concept shows the TRAPPIST-1 planets as they might be seen from Earth using an extremely powerful – and fictional – telescope. Credit: NASA/JPL-Caltech

That Starry Night Sky? It’s Full of Eclipses

5 min read

Our star, the Sun, on occasion joins forces with the Moon to offer us Earthlings a spectacular solar eclipse –…

Article2 weeks ago
Illustration shows the upper two-thirds of a gas-giant planet, TOI-4600 c, that is similar to Saturn (minus the rings). Cloud bands alternate between light tan, yellow, and darker yellow verging on green.

Discovery Alert: a Long Year for a ‘Cold Saturn’

3 min read

Two recently discovered exoplanets, gas giants possibly similar to Saturn, could be candidates for further atmospheric investigation.

Article1 month ago
A dull, orange-red background dotted with tiny white spots includes a small, bright yellow circle, a star, in the bottom left corner. In the center and center-right of the image, a large, doughnut-shaped, puffy cloud that has splotches of bright and dull orange-red, with a bright yellow-orange center. In front of the right side of this cloud is a red rock, a leftover planet core, that has bright red lines stemming from it. All across the image are small, dark greyish rocks.

Discovery Alert: Glowing Cloud Points to a Cosmic Collision

3 min read

Scientists find that a glowing cloud that obscured a star was caused by a cataclysmic collision of two giant exoplanets.

Article2 months ago

NASA’s Roman Mission Gears Up for a Torrent of Future Data

7 min read

NASA’s Nancy Grace Roman Space Telescope team is exploring ways to support community efforts that will prepare for the deluge…

Article6 months ago
An illustration shows a large, gaseous planet on the lower left, its large bright planet orbiting amid rocky debris. The exoplanet 8 Ursae Minoris b – also known as "Halla" – is shown amid the field of debris after a violent merger of two stars. The planet might have survived the merger, but also might be an entirely new planet formed from the debris. Image credit: W. M. Keck

Discovery Alert: The Planet that Shouldn’t Be There

3 min read

A large, gaseous exoplanet orbits a red giant star that should have destroyed it. It's 530 light-years from Earth.

Article7 months ago

How NASA’s Roman Could Help Find Other Earths by Surveying Space Dust

6 min read

A team of scientists found NASA’s Nancy Grace Roman Space Telescope will be able to measure a specific kind of…

Article2 years ago