You Searched For "Planets beyond Neptune" and got 18 results
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NASA's newest planet-hunting telescope just discovered a 'super-Earth' and 2 'sub-Neptunes' less than 75 light-years away - among the closest exoplanets ever found
The new worlds also exhibit a unique mathematical quality that researchers don't fully understand y…
Morgan McFall-Johnsen
Is it Planet 9 or Planet X? Scientists spar over what to call the solar system's hypothetical missing world
Stern is an ardent defender of Pluto's planethood. In 2015, shortly after New Horizons flew past Pl…
Dave Mosher
Evidence of ninth planet in solar system found, nicknamed 'Planet Nine
Our solar system may host a ninth planet that is 10 times the mass of the Earth and takes up to 20,…
840 new planets have been discovered beyond Neptune and its the single largest finding till date
We all know that the universe is vast, but we don’t know exactly how vast it is. But humans don’t b…
Scavenger hunt for Planet X just dropped another clue
So far three dwarf planets, including the Goblin, have been found in the fringes of our solar …
Astronomers found new evidence that a giant ghost planet may lurk in our solar system
Scientists have been searching for a "Planet Nine," or a large planet farther from the sun than Nep…
Jeremy Berke
Pluto was discovered 90 years ago this week. Controversy about its identity rages on.
When he discovered Pluto, Planet X became real - for a time. But in 2003, a world larger than Pluto…
Holly Secon
Here's what it will look like when all the planets in our solar system are almost aligned
You can click on each planet and drag it around to learn how fast it revolves and how long it takes…
Kelly Dickerson
A new space telescope is about to take an unprecedented look at alien planets circling distant stars. Watch it launch live.
Like other space telescopes, CHEOPS will watch for tiny dips in stars' brightness that are caused b…
Morgan McFall-Johnsen
NASA scientists think some planets are shrinking because powerful radiation from their cores is pushing away their atmospheres
The mystery of a missing class of planets has had NASA astronomers scratching their heads. New evid…
Sebastian Cahill,Morgan McFal…
Scientists have discovered a new planet twice the size of Earth, and it could have liquid water on its surface
Since Kepler is no longer hunting for planets, NASA is now hoping that a new space telescope will a…
Peter Kotecki,Peter Kotecki
Clouds on Uranus smell like farts, astronomers have confirmed - a clue that there was 'a big shakeup' early in the solar system
"If an unfortunate human were ever to descend through Uranus's clouds, they would be met with very …
Dave Mosher
There's a mysterious object doing a crazy loop around our solar system - and scientists have no idea what it is
Scientists noticed that rebel Niku seems to be hanging around a gang of other strangely aligned obj…
Ali Sundermier
Astronomers just discovered a 9th planet in our solar system for the first time in nearly 170 years
"You can think of them like different hands on the clock," Mike Brown, an astronomer at the Califor…
Jessica Orwig
NASA's iconic 'Pale Blue Dot' photograph turns 30 on Friday. It shows Earth in the void of space from nearly 4 billion miles away.
"There is perhaps no better demonstration of the folly of human conceits than this distant image of…
Holly Secon
What the James Webb Space Telescope's discoveries on another planet mean and don't mean — for the search for alien life
NASA's James Webb Space Telescope revealed that exoplanet K2-18 b may be an ocean world, and there'…
Morgan McFall-Johnsen
Here's why people are saying we may have found a mysterious 'Planet X'
The second paper describes evidence of another moving object in the same part of the sky as the sta…
Kelly Dickerson
A planet thrice the size of Jupiter discovered due to its 'strange orbit'
It took 20 years of observations to figure out that the planet has an 'highly eccentric'…