Historical observations by Tycho Brahe (1572) and Johannes Kepler (1604) documented the transient appearance of "new stars," later identified as supernovae, which profoundly challenged prevailing ...

From your place inside the Milky Way, you are living within a galaxy that keeps a detailed chemical diary. Every star holds clues about when it formed and what the galaxy was like at the time. Over ...

The movie posters for George Lucas’ original Star Wars trilogy remain the most beloved movie posters of all time. And there were a lot of them. Each film in the original trilogy had different posters ...

Messier 92, a globular cluster that is about the same age as the universe, is shown in this image taken with the Hubble Telescope. (Gilles Chapdelaine NASA/European Space Agency Photo) How old are the ...

Using the Hubble Space Telescope (HST), astronomers have observed a nearby ultra-diffuse galaxy designated F8D1. The new observations, presented July 17 on the pre-print server arXiv, deliver ...

Also known as the “Seven Sisters,” the striking cluster has long been used as an important seasonal marker and appears high in the night sky around Halloween The Pleiades, also known as the “Seven ...

An international team of astronomers has uncovered the most unmistakable evidence yet that the powerful jets launched by newborn stars reliably record a star's most violent growth episodes, confirming ...