The Greeks added a nearby additional fainter star to the five main stars, so that the six together outline Cassiopeia's Throne. At this time of the year, as Cassiopeia ascends the late evening sky ...

Among the 88 official constellations, Cassiopeia ranks as the 25th largest and 30th brightest. It contains four stars (Alpha [α], Beta [β], Gamma [γ], and Delta [δ] Cassiopeiae) that are among ...

The Heart Nebula, officially called IC 1805, is a cloud of gas and dust located about 7,500 light-years away in the ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern latitudes).

The constellation Cassiopeia is a W-shaped formation of bright stars outlining the throne of the banished queen with Her Majesty bound to it. The constellation Cepheus is not nearly as bright as ...

C/2022 E2 (ATLAS) can be seen in mid-northern latitudes in the constellation Cassiopeia. It's dim, with a magnitude of 13. You’ll need at least an 8-inch telescope to spot it, according to Star ...

The NIRCam image displayed the inner shell of Cas A in hues, representing gas knots rich in elements like sulfur, oxygen, argon, and neon Contributions to new stars and planetary systems Debris ...

In celebration of the 29th anniversary of the launch of NASA's Hubble Space Telescope, astronomers used Hubble to capture this festive, colorful look at the tentacled Southern Crab Nebula. Object NGC ...

in the constellation Cassiopeia and Comet 29P/Schwassmann-Wachmann, which orbits between Jupiter and Neptune. Here’s when you’ll see the next full moon, comets constellations and more. Venus will ...

NASA's James Webb Space Telescope captured the rare image of NGC 602, which is a star cluster that lies on the outskirts of the Small Magellanic Cloud, one of the closest galaxies to the Milky Way.