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We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.
The James Webb Space Telescope's Near-Infrared Camera (NIRCam) reveals a stunning view of star-forming region Sagittarius C ...
This year, the Buck Moon follows Earth's aphelion, the point in its orbit farthest from the Sun, by just a few days, ...
Cosmic radiation occasionally contains enormous amounts of energy, but we don’t know why or where this radiation comes from.
Chandra X-ray Observatory and X-ray Polarimetry Explorer (IXPE) imagery of the Milky Way's core and supermassive black hole ...
Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...
The Andromeda galaxy is also known as Messier 31. It is a spiral galaxy located about 2.5 million light-years from Earth. On ...
A new image from NASA composed of different wavelengths created a stunning image of Andromeda. “This new image of M31 is ...
Sauk Prairie will get a glimpse of one of the two eclipses that will occur over the next thirty days. The total solar eclipse ...
Hubble spotted a rare off-center black hole shredding a star, revealing the first optical discovery of a wandering ...
A new generation of black hole research is unfolding thanks to artificial intelligence, massive simulations, and cutting-edge ...