Portal Space Systems says that a rapid-maneuverability space vehicle called Starburst will leverage technologies it's already ...

In 2018, a patch of sky 11 billion light-years away suddenly exploded with light. Researchers thought the galaxy looked ...

The BOAT – or Brightest of All Time, a record that has yet to be beaten – was a gamma-ray burst accompanying a supernova ...

Is there anything more dramatic than an exploding star? More than just extraordinarily bright, energetic events that can ...

Astronomers have spotted the biggest flare ever seen erupting around a black hole, which also happens to be the most distant ...

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The finalists for the Vallejo Sun's inaugural Best of Vallejo & Benicia contest are here! We received hundreds of nominations across 117 categories. Now the final round of voting begins – voting ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Portal Space Systems, a Bothell-based startup, aims to harness the power of the sun to propel spacecraft, making it easier to ...

As the collapsed core of a massive star, a neutron star is a small but incredibly dense object, packing up to three times the ...

State highway officials reopened northbound Route 27 in Carroll County on Wednesday evening and said eastbound Interstate 70 is expected to reopen before Thursday morning after emergency repairs to a ...