Exoplanets

A New Super-earth Detected Orbiting A Red Dwarf Star

In recent years there has been an exhaustive study of red dwarf stars to find exoplanets in orbit around them. These stars have effective surface temperatures between 2400 and 3700 K (over 2000 degrees cooler than the Sun), and masses between 0.08...
Related topics: Sun

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We're On Our Way Already: Astroboffins Find 5 Potentially Habitable Tatooine-like Planets From...

Perhaps gigantic puffy exoplanets aren't as hostile to life as previously thought Astronomers believe five binary-star systems identified by NASA’s now-defunct Kepler Space Telescope could have the right properties to support extraterrestrial...
Related topics: Space, NASA, Telescopes

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Did This Scorching-hot Planet Lose—and Regain—an Atmosphere?

A veritable hellscape of an exoplanet is challenging researchers’ assumptions about what types of worlds host atmospheres.
Related topics: Space

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First Transiting Exoplanet's 'chemical Fingerprint' Reveals Its Distant Birthplace

Astronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further away.
Related topics: Space

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Raindrops Also Keep Fallin’ On Exoplanets

One day, humankind may step foot on another habitable planet. That planet may look very different from Earth, but one thing will feel familiar — the rain. In a recent paper, Harvard researchers found that raindrops are remarkably similar across...
Related topics: Space, Harvard University

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Tess Has Found 2,200 Potential Exoplanets So Far

Exoplanetology has been on a tear recently.  This is largely due to an abundance of data collected by a new generation of satellites, one of which is the Transiting Exoplanet Survey Satellite (TESS).  Now the project has reached a new milestone...
Related topics: Satellites, Space, Polls

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If Astronomers See Isoprene In The Atmosphere Of An Alien World, There’s A Good Chance There’s...

It is no exaggeration to say that the study of extrasolar planets has exploded in recent decades. To date, 4,375 exoplanets have been confirmed in 3,247 systems, with another 5,856 candidates awaiting confirmation. In recent years, exoplanet studies...
Related topics: Space

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Nasa's Tess Spacecraft Finds Evidence Of 2,200 Possible Exoplanets

Launched in 2018 on a mission to spot planets outside our solar system, NASA’S TESS (Transiting Exoplanet Survey Satellite) has now discovered over 2,200 possible planetary candidates. The candidates are all orbiting bright nearby stars, and...
Related topics: NASA, Space, Spacecrafts, Polls, Satellites, Scientific Discoveries

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Unexplained Interstellar Visitor Oumuamua Could Be Lost Piece Of An Exoplanet - Cnet

Oumuamua's origin has been hotly-debated. A new study proposes it's an exploded chunk of a Pluto-like planet.
Related topics: Pluto, Space

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There Might Be Many Planets With Water-rich Atmospheres

A new study suggests that hot, rocky exoplanets could not only develop atmospheres full of water vapor, but keep them for long stretches.
Related topics: Space

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Planet With Secondary Atmosphere

The discovery and exploration of exoplanets over the last three decades has been an exciting addition to astronomy. In 1990 we knew of no planets outside our solar system, and now there are more than 4,000 confirmed exoplanets, and thousands of more...
Related topics: Space, Scientific Discoveries

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How The Habitability Of Exoplanets Is Influenced By Their Rocks

The weathering of silicate rocks plays an important role to keep the climate on Earth clement. Scientists investigated the general principles of this process. Their results could influence how we interpret the signals from distant worlds - including...

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Astronomers Have Discovered The First Exoplanet With Plate Tectonics — Pangaea When?

Like the volcano planet Mustafar from Star Wars, half of the exoplanet 3844b could be covered in active volcanoes. This planet, discovered in 2019, could be the first world we know, outside the solar system, to have plate tectonics, which guides...
Related topics: Space, Scientific Discoveries, Volcanoes

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New Study Reveals When Earth Will Run Out Of Oxygen

Oxygen is an essential element that is commonly accepted as a possible indicator of life on exoplanets. However, the oxygenated atmosphere of Earth that makes it inhabitable may not be permanent.

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Nasa Does Cool Stuff That It Does Not Know That It Does

Keith's note: NASA has some amazing online resources - you can find exoplanets, track satellites, watch weather, and see meteors. These resources intrinsically overlap. So you'd think that NASA would always be thinking of ways to leverage one...
Related topics: NASA, Space, Satellites, Meteor

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Gliese 486b Is A Hellish World With Temperatures Above 700 Kelvin

In the past two and a half decades, astronomers have confirmed the existence of thousands of exoplanets. In recent years, thanks to improvements in instrumentation and methodology, the process has slowly been shifting from the process of discovery...
Related topics: Space, Scientific Discoveries

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Tectonic Activity On This Exoplanet Could Mean One Half Is Covered In Volcanoes

Global tectonic activity has never been observed on a planet outside our solar system, but now a new study suggests that exoplanet LHS 3844b has interior flows.
Related topics: Volcanoes, Space

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Evidence Of Tectonic Activity Discovered On An Exoplanet For The First Time

Astronomers have been intently studying an exoplanet called LHS 3844b for many years. Back in 2019, researchers announced that they believed the planet was covered by dark lava rock. Researchers studying the exoplanet have now made another exciting...
Related topics: Scientific Discoveries, Space, Lava

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This Hot Super-earth Has Temperatures Of 800°f And Rivers Of Glowing Lava

No day or night, heat intense enough to melt lead, and glowing rivers of lava: This hellish landscape is a typical day on exoplanet Gliese 486b.
Related topics: Lava

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Planet-hunting Eye Of Plato

Key technology for ESA's exoplanet-hunting Plato spacecraft has passed a trial by vacuum to prove the mission will work as planned. This test replica of an 80-cm high, 12-cm aperture camera spent 17 days inside a thermal vacuum chamber.
Related topics: Space, European Space Agency, Spacecrafts

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