The Hubble Space Telescope has observed a double whammy — two independent galaxy clusters grouped together in the same view.
New research strengthens the connection between neutron stars with powerful magnetic fields called magnetars, and mysterious blasts of radiation called fast radio bursts.
Synchronizing two different stellar clocks helped reveal how long before adolescent stars fly the nest and leave their stellar siblings.
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A new photo from the European Southern Observatory’s Very Large Telescope captures the Vela supernova remnant, the result of a stellar explosion that happened 11,000 years ago.
Conditions within dwarf galaxies initially produce more stellar-mass black holes than supernova explosions.
Reference Binary stars are two stars that orbit a mutual center of gravity. It is the most common type of multistar system.
A new supercomputer simulation reveals why spiral galaxies like our Milky Way are strikingly scarce in our pocket of the universe.
Significant amounts of nickel observed in galaxies only two-to-three billion years after the Big Bang.
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The universe is not just expanding – its rate of expansion is accelerating. And that expansion rate is even faster than the leading theory predicts it should be, leaving cosmologists puzzled.
A new calibration technique allowed the ALMA radio telescope to capture its highest-resolution image ever, featuring a star in the final stages of its evolution.
The "Demon Star" of Algol gets eclipsed this week by one of its stellar siblings. Here's what you need to know.
Astrophotographer Miguel Claro stitched together an eerie look at the core of our galaxy, the Milky Way, showing glowing lights in the dark.
A distant stellar corpse is coming back to life, exhibiting repeated explosive flares and representing a new type of "cosmic cataclysm."
NASA has begun construction has started on SPHEREx, a new extraordinary mission that will map the sky in unprecedented detail and color.
We see these galaxies as they were over 13.45 billion years ago, just between 330 and 350 million years after the Big Bang.
The new spectrograph, named IGRINS-2, will probe regions of star-birth and star-death, as well as observe exoplanets and track the evolution of galaxies.