For over 30 years, astronomers have relied on Type Ia supernovae to measure the universe’s expansion. These stellar ...

On March 15, 2024, a space-based observatory detected bursts of low-energy X-rays from deep in the ancient universe, ...

The "needle in the haystack" discovery of a powerful explosion from a mysterious unknown object outside our galaxy has ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

A unique dataset of Type Ia supernovae being released today could change how cosmologists measure the expansion history of ...

Unexpected epochs of stillness that punctuate the cosmic timeline could offer a natural explanation for dark matter and many ...

Gamma-ray bursts are the most energetic explosions in the universe, releasing as much as a quintillion (10 followed by 18 zeroes) times the energy that is radiated by the sun. This is suspected to ...

Learn about the explosions that often occur at the end of a white dwarf star's life, allowing scientists to study the ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that may have sparked extraterrestrial life in the very first galaxies.

In an explosion, fragments are flung out from a ... It means that all the distances in the universe are stretching out at the same rate. Any two galaxies separated by distance X are receding ...