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10 dazzling photos of the Perseid meteor shower, 2023
Aug 17, 2023
10 dazzling photos of the Perseid meteor shower, 2023
The peak of the annual Perseid meteor shower may have passed (this year, peak activity fell overnight from Aug. 12 to Aug. 13), but the skies of Earth are still ablaze with shooting stars. The Perseids began on July 14 and run through Sept. 1, 2023, as Earth passes through...
'Cosmic monster' star spits energy with the force of a billion suns
Jan 2, 2022
'Cosmic monster' star spits energy with the force of a billion suns
A dense, magnetic star violently erupted and spat out as much energy as a billion suns — and it happened in a fraction of a second, scientists recently reported. This type of star, known as a magnetar, is a neutron star with an exceptionally strong magnetic field, and magnetars often...
Bizarre cloud of gas is one of the longest structures in the Milky Way
Jan 7, 2022
Bizarre cloud of gas is one of the longest structures in the Milky Way
Astronomers have discovered what may be the longest structure in the Milky Way: an unusual cloud of hydrogen. The gigantic structure, which is more than 3,900 light-years long and around 150 light-years wide, is located roughly 55,000 light-years away from the solar system, according to a statement by researchers. (Previously,...
The Higgs boson could have kept our universe from collapsing
Jan 24, 2022
The Higgs boson could have kept our universe from collapsing
The Higgs boson, the mysterious particle that lends other particles their mass, could have kept our universe from collapsing. And its properties might be a clue that we live in a multiverse of parallel worlds, a wild new theory suggests. That theory, in which different regions of the universe have...
Astronomers detect powerful cosmic object unlike anything they've seen before
Jan 26, 2022
Astronomers detect powerful cosmic object unlike anything they've seen before
Astronomers have discovered a mysterious, flickering object in the Milky Way that belches enormous amounts of energy toward Earth three times an hour. This strangely powerful object — located about 4,000 light-years from the sun — is unlike any cosmic structure ever observed, researchers wrote in a study published Jan....
Astronomers discover 1,000 strange 'filaments' of radio energy bursting from the galaxy's center
Jan 29, 2022
Astronomers discover 1,000 strange 'filaments' of radio energy bursting from the galaxy's center
Researchers gazing into the center of the Milky Way with one of the world's largest radio telescope arrays have discovered thousands of mysterious strand-like structures never seen before. These structures, known as radio filaments, jut out of the galactic center in long, thin tendrils — some of which stretch up...
Largest galaxy ever discovered baffles scientists
Feb 17, 2022
Largest galaxy ever discovered baffles scientists
Astronomers just found the largest galaxy ever discovered, and they have no idea how it got so big. At 16.3 million light-years wide, the Alcyoneus galaxy has a diameter 160 times wider than the Milky Way and four times that of the previous title holder, IC 1101, which spans 3.9...
Three galaxies are tearing each other apart in stunning new Hubble telescope image
Feb 18, 2022
Three galaxies are tearing each other apart in stunning new Hubble telescope image
Corkscrewing through the cosmos, three distant galaxies collide in a stunning new image captured by NASA's Hubble Space Telescope. This cosmic crash is known as a triple galaxy merger, when three galaxies slowly draw each other nearer and tear each other apart with their competing gravitational forces. Mergers like these...
Largest shock wave in the universe is '60 times larger than the Milky Way,' new study finds
Feb 27, 2022
Largest shock wave in the universe is '60 times larger than the Milky Way,' new study finds
What happens when two of the largest objects in the universe collide? Simple, says a new study: They create one of the largest shock waves in the universe. Located about 730 million light-years from Earth, Abell 3667 is a galaxy cluster in chaos. Actually composed of two clusters (or groups)...
The Milky Way's 'thick disk' is 2 billion years older than scientists thought
Mar 28, 2022
The Milky Way's 'thick disk' is 2 billion years older than scientists thought
Misjudging someone's age can be awkward… especially when you're off by a few billion years. That may be the case with our Milky Way galaxy, research published March 23 in the journal Nature suggests. In the new study, scientists inferred the ages of roughly 250,000 stars in the Milky Way...
Astronomers just discovered the farthest object in the known universe — but what is it?
Apr 7, 2022
Astronomers just discovered the farthest object in the known universe — but what is it?
A possible galaxy that exists some 13.5 billion light-years from Earth has broken the record for farthest astronomical object ever seen. That age places this collection of stars, now dubbed HD1, between a time of total darkness — about 14 billion years ago the universe was a blank slate devoid...
Galactic bones inside Milky Way's skeleton are a magnetic mess
Apr 8, 2022
Galactic bones inside Milky Way's skeleton are a magnetic mess
Astronomers have produced the most detailed map yet of the magnetic field within a part of one of the Milky Way's spiral arms called a galactic bone — a long filament of dense gas and dust that forms down the middle of the arm of a spiral galaxy. The new...
Cosmic 'angel wings' emerge from violent galactic collision in Leo constellation
Apr 22, 2022
Cosmic 'angel wings' emerge from violent galactic collision in Leo constellation
An angel gets its wings as two distant galaxies collide in a stunning new image snapped by the Hubble Space Telescope. The galactic smashup took place in the VV689 system in the constellation Leo. The delicate wings formed as the two gravitationally bound objects collided and merged, deforming each other....
The universe could stop expanding 'remarkably soon', study suggests
May 2, 2022
The universe could stop expanding 'remarkably soon', study suggests
After nearly 13.8 billion years of nonstop expansion, the universe could soon grind to a standstill, then slowly start to contract, new research published in the journal Proceedings of the National Academy of Sciences suggests. In the new paper, three scientists attempt to model the nature of dark energy —...
What is the universe?
May 3, 2022
What is the universe?
The universe is literally everything, the sum of all existence. It includes all matter, like stars and galaxies. The universe also includes all radiation and all other forms of energy. No matter where or when you exist, you are a part of the universe, as is everything you experience. There...
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