"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today."
The explosion created a 250,000-mile-long, boiling trench of hot plasma and debris in the star’s outer atmosphere.
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It's another meteoric rise for what's called the largest piece of Mars on Earth. The 54-pound rock fetched nearly $5.3 million at an auction at Sotheby's in New York on Wednesday. The buyer's identity was not disclosed. The red, brown and gray meteorite is be…
New pictures taken in Yukon, Canada, show a perfectly preserved fossil skull, which experts say belonged to a male, teenage horse that lived during the last ice age.
Astrophotographers have snapped stunning shots of a giant shapeshifting solar prominence, dubbed "The Beast," which appeared over the sun's northeastern limb on July 12 and rained impossibly fast fire over our home star.
Astronomers have uncovered a rare object, 2020 VN40, moving in perfect sync with Neptune, revealing hidden secrets about the outer solar system and its mysterious dynamics.
Earlier this month, astronomers were thrilled after spotting an interstellar object — only the third of its kind ever observed — hurtling toward the center...
In a new Nature Physics paper, researchers report the first experimental observation of the transverse Thomson effect, a key thermoelectric phenomenon that has eluded scientists since it was predicted over a century ago.
Large flat surfaces carved by ancient rivers deep beneath the East Antarctica are influencing how ice flows across the continent today, according to a new study.
Using ripples in space-time predicted by Einstein, a team of researchers has detected a cosmic merger of unprecedented proportions.
IN A NUTSHELL 🌌 Mars’ Red Color is due to iron oxide, or rust, covering its surface, linking its hue to both mythology and science. 🚀 Probes and rovers have revealed Mars’ surface is not uniformly red but varies from rusty brown to tan, with white ice caps …
Snapped by the New Horizons spacecraft.
Ancient trackways in seabed mud show animals moved purposefully 10 million years before the Cambrian Explosion.
Ötzi the Iceman may have come to an unfortunate end while crossing the Alps more than 5,000 years ago, but thanks to his well-preserved remains, he's still helping us understand our past. A new digital reconstruction of the mummy's ribcage is providing fresh …
Mark your calendar for later this summer when the Perseid meteor shower reaches its peak, offering a rare opportunity to see up to 100 meteors per hour.
"One day soon we may be able to see these 'missing' galaxies, which would be hugely exciting and could tell us more about how the universe came to be as we see it today."
Dark matter particle and antiparticle collisions could make some stars immortal.
A new study corrects the recorded depth of an earthquake in Japan, revealing that it was not the deepest in history.
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