You Searched For "Oort Cloud" and got 18 results
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1 min read
Skywatching Alert: Catch this rare, once-in-80,000 years comet before it disappears!
If celestial wonders are your thing, this is the perfect time to turn your eyes to the sky. A rare…
2 mins read
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 …
5 mins read
How to see Comet A3, which could be the best comet in a decade. Neanderthals walked the Earth last time it flew by.
Comet A3 hasn't been past Earth since the Neanderthals. It'll be visible across the Northern Hemisp…
Morgan McFall-Johnsen
2 mins read
A rogue star could save Earth from extinction in a billion years by knocking it out past Pluto
In around a billion years, the sun will become hot enough to boil all the oceans on Earth. A rogue …
Marianne Guenot
2 mins read
A Millennium Falcon-shaped comet heading toward Earth is so bright you'll able to see it with your naked eye, say astronomers
The comet, known as Comet 12P/Pons-Brooks, abruptly brightened 100-fold on July 20 as plumes of deb…
Ellie Zolfagharifard
3 mins read
A green comet that takes about 50,000 years to complete its orbit around the sun will come closest to Earth for the first time since the Stone Age
The comet will be visible in late January and early February. Here's how to watch it, why it's gree…
Kenneth Niemeyer
2 mins read
A mysterious green comet is approaching Earth and could be visible to the naked eye soon. Here's how to see it.
Comet Nishimura is already visible with small telescopes. If it survives the sun, it will be visibl…
Marianne Guenot
3 mins read
It should take another 300 years for NASA's Voyager 1 probe to reach the most distant region of our solar system. Until then, it's cruising through the void between the stars.
Voyager 1 crossed the heliopause in 2012 and is drifting through interstellar space at the edge of …
Paola Rosa-Aquino
4 mins read
The space rock that doomed the dinosaurs was shrapnel from a comet that flew too close to the sun, a Harvard study suggests
The origin of the space rock that killed the dinosaurs has been a mystery. A new study suggests it …
Aylin Woodward
5 mins read
NASA says Voyager 2 is the second human object ever to touch interstellar space - the void between stars
"The sun creates this huge bubble of plasma - ionized material - that goes outward at a million mil…
Dave Mosher
4 mins read
All stars in the universe may form in pairs - but we can't find the sun's missing 'Nemesis'
When he introduced his Nemesis idea, Muller posited that the twin star might periodically intersect…
David Levine
3 mins read
A star is hurtling towards our solar system and could knock millions of asteroids straight towards Earth
However, the Gliese 710 event could make the dinosaur extinction look relatively minor. At its clos…
Lindsay Dodgson
2 mins read
Astronomers Have Made An Incredible Discovery In The Outer Solar System
The discovery images of 2012 VP113, which has the most distant orbit known in our Solar System. Thr…
Dina Spector
1 min read
Here's What It Means When NASA Says Voyager 1 Is In Interstellar Space
The scale is in astronomical units (AU). One AU is equal to the Earth's distance from the sun - abo…
Kelly Dickerson
3 mins read
Watch A Mountain-Sized Comet Zip By Mars During A Once-In-A-Million-Years Event Sunday
Scientists think that Comet Siding Spring formed between one to two million years after the birth o…
Jessica Orwig
5 mins read
Leading Harvard physicist has a radical new theory for why humans exist
It's this similarity between the rate of mass extinction rates and the rate of our solar system's o…
Jessica Orwig
3 mins read
COMET ISON: The Most Exciting Thing To Happen On Thanksgiving
In the first and most exciting scenario, ISON could survive the passage of the sun and continue on …
Dina Spector
3 mins read
Astronomers Spot A Never-Before-Seen Comet-Like Thing In The Sky
Comets, on the hand, are typically made of ice, dust, and rock. When comets gets close to the sun, …