Astronomers have re-examined the biggest explosion ever seen, possibly the most massive explosion since the Big Bang, to ...

What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?

In the sprawling Hydra constellation, 137 million light-years away, lies NGC 3285B—a dazzling spiral galaxy recently ...

A jaw-dropping eruption just tore through the Sun—forming a 250,000-mile-long "canyon of fire" with plasma walls taller than ...

If you thought our moon was the only satellite circling the Earth, think again. Astronomers have revealed a shocking number ...