"Planet Nine" hypothesis gets new boost
"I think it is very unlikely that P9 does not exist. There are currently no other explanations for the effects that we see," researcher Michael Brown said.
Nightmarish "spider" phenomenon revealed in photos of Mars
The "spiders" are actually caused by frozen CO₂ melting into gas and bursting out from below the frozen surface of the Red Planet.
NASA discovers glassy lava lake on Jupiter's moon
NASA's Juno mission has gathered data from Jupiter's third-largest moon Io, revealing details of a lake of lava on its surface.
Venus is leaking carbon and oxygen—and scientists don't know why
"This is the first time that positively charged carbon ions have been observed escaping from Venus' atmosphere," researcher Lina Hadid said.
Once-in-a-lifetime "devil comet" to be brightest this weekend
12P/Pons-Brooks will be at its closest point to the sun on April 21, and may even be visible to the naked eye.
How to watch Lyrids meteor shower light up the night sky this weekend
"The best time to see these is after midnight on a moonless night, with as little light pollution as possible," said astronomer Don Pollacco.
Mystery of how Pluto got its heart finally "solved" by astrophysicists
The large heart-shaped region may have formed after a massive but slow-moving object collided with Pluto at a strange angle.
NASA says giraffe-sized asteroid to pass incredibly close to Earth today
2024 GJ2 will pass at only 4 percent of the distance between the Earth and Mars, making it a very close flyby.
Astronomers reveal Earth's "sad" fate when the sun dies
When planets and moons orbit a white dwarf, the star's gravity may rip them apart into tiny pieces, which may happen in Earth's far future.
Debris from NASA asteroid collision may hit Mars
Huge chunks of an asteroid that NASA sent a spacecraft slamming into may one day collide with Mars, new research has found.
Solar eclipse warning from astronomers on dangerous products
Experts warn consumers buying glasses to watch the upcoming solar eclipse that some may be counterfeits and unsafe for use.
Strongest geomagnetic storm in years lights up sky
The storm hit a G4-level severity thanks to a powerful coronal mass ejection flung out from the sun, sparking the aurora australis, or southern lights.
How to see the once-in-a-lifetime "devil comet" in April
"It's likely to look like a sort of small, greyish fuzz, quite typical for many comets," astronomer Robert Massey said.
Map shows best 15 US states to see solar eclipse in 2024
The sun will be totally blocked from view in 12 states, while three others will see a partial eclipse.
Incredible moon video maps exact Apollo landing sites
The NASA map reveals the locations of each of the manned Apollo landings, all of which can be seen clustered near the moon's equator.
"Cannibal" star left with metal scar after swallowing its planet
"It is well known that some white dwarfs are cannibalizing pieces of their planetary systems," astronomer Stefano Bagnulo said.
Astronomers discover three hidden moons in our solar system
Two new moons of Neptune, and one new moon of Uranus, have been discovered, taking each planet's total moon count to 16 and 28, respectively.
Powerful solar flare causes radio blackout over western US
The X1.9-class solar flare was spat out from a magnetically active sunspot named AR3590, which also released an X1.7-class flare mere hours later.
Your shots of unusual comet wanted to help keep Earth safe from sun
"We need lots of timed photos of the comet to build up a picture of its journey through our solar system," astronomer Sarah Watson said.
Worlds at the far reaches of the solar system could support life
Eris and Makemake, two dwarf planets beyond Neptune, may be host to geothermal activity and therefore be more habitable than was once thought.
Cold water thrown on hope of life in ocean of Saturn's icy moon Titan
"We now need to be a little less optimistic when searching for extraterrestrial lifeforms within our own solar system," astrobiologist Catherine Neish said.
Solar radiation storm causing massive enduring radio blackout
A solar flare has triggered an event where protons slam into the ionosphere at the poles and ionize it, causing radio blackouts.
Saturn's "Death Star" moon might be hiding a secret ocean
"The ocean is likely to be less than 25 million years old and still evolving," researchers said.
Look up this month as Mars and Venus appear to come together
Mars and Venus will appear to merge in the night sky, though unfortunately, this won't be visible from much of the U.S.
NASA says Empire State Building-sized asteroid to pass Earth Friday
The asteroid, named 2008 OS7, will fly by the Earth faster than a speeding bullet, with a velocity of around 40,700 mph.
Solar storm to hit Earth today causing GPS and radio disruption
A coronal mass ejection will trigger a geomagnetic storm, which can impact technology and cause the Northern Lights to be seen further south.
Frozen water discovered on Mars could fill Red Sea
"If this is ice, it would represent the most substantial low-latitude ice ever detected on Mars," scientist Gareth A. Morgan said.
Mysterious giant structure challenges our understanding of the universe
The "Big Ring on the Sky" is about 1.3 billion light-years in diameter, with a circumference of about four billion light-years.
Mystery of "magic islands" on Saturn's moon Titan solved, scientists say
The ephemeral phenomena were first observed in 2014, and since then, researchers have been trying to work out what they are.
Life on Venus may be possible in acidic clouds, claim scientists
"This paper shows (by experiment) that amino acids (essential for life as we know it) can be stable in such conditions," expert David Rothery told Newsweek.