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James Webb telescope detects alien planet with clouds made of quartz
By Joanna Thompson published
The exoplanet WASP-17b's atmosphere is full of quartz clouds, according to a new James Webb Space Telescope observations.
Scientists finally solve mystery of strongest Marsquake ever detected
By Sharmila Kuthunur published
The strongest recorded Marsquake, which rattled for six hours in May 2022, left no visible traces on the Red Planet surface. Now, scientists think they know what caused it.
Mysterious signals from 'hell planet' 40 light-years from Earth could finally be solved by James Webb Space Telescope
By Paul Sutter published
The hellish super-Earth '55 Cancri e' may be constantly losing and re-growing its atmosphere, a new study of the planet's strange transit signals suggests.
Soar through the 'Labyrinth of Night' — a Martian canyon the size of Italy — in thrilling new satellite video
By Briley Lewis published
See Mars' geology up close, thanks to decades of stunning images from the Mars Express satellite, in a new visualization of Noctis Labyrinthus, the 'Labyrinth of Night'.
Astronomers spot violent afterglow of 2 massive planets that collided in a distant star system
By Robert Lea published
Astronomers detected the dusty afterglow of a massive planetary collision in a star system 3,600 light-years away, where two giant icy worlds met their end.
How to see bright Venus dance with a glowing crescent moon this week
By Jamie Carter published
Early on Oct. 10, the bright planet Venus will appear exceptionally close to the crescent moon in a lovely skywatching display. Here's when and where to watch.
Mercury is still shrinking after billions of years, and scientists can see its 'wrinkles'
By Briley Lewis published
The smallest planet in our solar system is getting smaller as heat escapes its core and fresh cracks open on its surface, new research finds.
Massive Martian 'dust devil' filmed by NASA's Perseverance rover is 5 times taller than the Empire State Building
By Harry Baker published
The Perseverance rover has captured footage of an unusually large twister, or "dust devil," moving across the Martian landscape. Based on images of the swirling storm, researchers estimate that it could be more than a mile tall.
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