Time-lapse of Space Shuttle Endeavour stacked with an external tank and pair of solid rocket boosters for a exhibit at the ...

Embark on a journey of discovery beneath the stars with this mesmerizing time-lapse of the Milky Way, where the night sky ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

A remarkable new study challenges the findings of Nobel Prize winning research into how our universe has changed over time.

It is widely accepted that the universe is expanding at an accelerating rate, but now researchers say our measurements of the ...

Astronomers have chased the first stars for decades, squinting at the early universe for any hint of their brief, brilliant ...

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at ...

Astrophotographer Mark Johnstron captured a mesmerizing cloud of hydrogen plasma dancing above the sun's limb in this ...

A peculiar object discovered by the James Webb Space Telescope just 700 million years after the Big Bang could reveal the ...