All supernovae are exploding stars. But the nature of a supernova explosion varies quite a bit. One type, named Type 1a supernovae, involves a binary star where one of the pair is a white dwarf. And while supernovae of all types usually involve a single explosion, astronomers have found something that breaks that mould: A Type 1a supernova that may have detonated twice.
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The Bootstrap Paradox
The Bootstrap Paradox, also known as a causal loop or ontological paradox, is a thought experiment or scenario in which an object or piece of information is sent back in time and becomes the cause of its own existence in the future. This creates a self-referential loop in which the past and the future are intertwined, and it raises questions about causality and the origins of events.
Watch SpaceX launch 22 Starlink satellites to orbit tonight
SpaceX will launch 22 of its Starlink internet satellites to orbit tonight (Aug. 31), and you can watch the action live.
James Webb Space Telescope snaps stunning view of supernova's expanding remains (photos)
The exploded guts of a supergiant star are giving up new secrets in a case of stellar CSI.
A Neptune-sized Exoplanet is Denser Than Steel. The Result of a Catastrophic Collision?
There’s an odd exoplanet out there posing a challenge to planetary scientists. It’s a hot Neptune denser than steel. The big question is: how did it form?
Pentagon UFO office unveils official website for US government personnel to report sightings
The Pentagon's official office for addressing UFOs has a new website where U.S. government and military personnel can report their own sightings.
Black astronauts celebrate ISS, Artemis 2 moon missions while reflecting on history
Two Black astronauts spoke to Space.com about their experiences in space and what's coming next.
Amateur astronomers capture Jupiter suffering spectacular cosmic collision
A flash of light on our solar system's gas giant has alerted space enthusiasts of an intriguing impact
Get ready for the epic 'ring of fire' annular solar eclipse of October 2023 with this epic NASA trailer (video)
NASA has released a video trailer for a "ring of fire" annular solar eclipse that will sweep across the Americas on Oct. 14, 2023.
Drift through space with a dreamy track from 'Starfield's' original score by composer Inon Zur (exclusive)
The epic space exploration game "Starfield" is almost here. Listen to an exclusive track from its original soundtrack by award-winning composer Inon Zur.
NASA's exoplanet hunter TESS spots warm Jupiter with longest known year
Astronomers using NASA's exoplanet-hunting TESS satellite have found a "warm" Jupiter with the longest period ever seen with an alien world.
Do Advanced Civilizations Know We're Here?
Adrift in a great sea of stars, we must surely not be alone.
DJI Air 3 review
Despite a step down in size from the 1-inch sensor seen in the DJI Air 2S, the Air 3 features dual cameras offering excellent image quality alongside advanced functionality.
Annular solar eclipse 2023: How to watch Oct. 14 'ring of fire' in person and online
Find out how to watch the annular solar eclipse on Oct. 14 in person and with these free livestreams. The famous 'ring of fire' is not to be missed.
This gamma-ray space mystery may finally be solved with new black hole simulations
Here's why a black hole crashing into a neutron star belched out an odd gamma-ray burst.
What are fast radio bursts?
Fast radio bursts — fleeting blasts of energy that are brighter than entire galaxies — remain mysterious. Here's what we know (and don't know) about FRBs.
SpaceX to launch 13 satellites for Space Development Agency mega-constellation
A SpaceX Falcon 9 rocket will launch 13 Tranche 0 demonstration satellites for the U.S. military’s Space Development Agency (SDA). Liftoff from Vandenberg Space Force Base in California is scheduled for 7:26 a.m. PDT (10:26 a.m. EDT / 1426 UTC).
A good night’s sleep in orbit
During his Huginn mission, ESA astronaut Andreas Mogensen will run two experiments focusing on sleeping in space: Circadian Light and Sleep in Orbit.
Sun launches surprise blob of plasma at Mars, could trigger eerie Martian auroras
The sun has launched a surprise coronal mass ejection directly at Mars, which could spark auroras on the Red Planet and potentially erode part of Mars' remaining atmosphere when it hits on Sept. 1.
Last Super Blue Moon until 2037 lights up skies around the world (photos)
The Super Blue Moon looks incredible in these photos from around the world. Here we've selected some of the best!
