Scientists have discovered radioactive debris from relatively nearby stars that exploded a few million years ago, raising questions about whether cosmic rays released by the supernovae impacted Earth’s past climate.
The discovery should help scientists understand the life cycle of stars.
Microscopic dust grains extracted from meteorites that landed on Earth had ancient and explosive origins, scientists have discovered.
From the brightest supernovae to the blackest of holes, space sure knows how to provide extremes. But, it's not as easy as just taking a look to decide which objects are how bright or dark. DNews crunches the numbers.
Gravity waves, gravitational waves and primordial gravitational waves... what do they mean? Is there a difference?
Tune in tonight at 7 p.m. for a fascinating Perimeter Institute public lecture on the physics and mysteries behind neutron stars.
A network of small, ground-based telescopes hunting the night-time skies for transient supernovas fished out a whopper -- a one-of-a-kind cosmic explosion that at its peak blasted out more light than 50 times all the stars in the Milky Way galaxy.
An ancient supernova that was serendipitously captured in four Hubble space telescope images thanks to a naturally occurring cosmic magnifying lens has reappeared, as astronomers predicted.
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