To reach Earth’s closest star system, Alpha Centauri, scientists are building a laser-powered spacecraft. To pull off interstellar travel, a spacecraft must be very light; therefore, it’s essential to ...

“That’s the Pinwheel galaxy,” I said. The name is derived from its shape – albeit this pinwheel contains about a trillion ...

The result, announced in a new report publishing in the Astrophysical Journal, marks the latest in a long-running controversy over the Hubble constant, a key measure of the universe's age and ...

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This NASA Hubble Space Telescope image of NGC 520 offers one example of possible encounter scenarios between our Milky Way and the Andromeda galaxy. NGC 520 is the product of a collision between two ...

A split image of Amelia Ritthaler sharing her amusing encounter with her Gen Alpha sister. A split image of Amelia Ritthaler sharing her amusing encounter with her Gen Alpha sister. @ameliapleease ...

This image of massive galaxy cluster MACS J0416.1-2403 was part of the Hubble Space Telescope's Frontier Fields project, which combined the power of natural "gravitational lenses" in space. The ...

The Search for Extraterrestrial Intelligence (SETI) recently detected a mysterious signal originating from Proxima Centauri, the closest star system to our own. This discovery has sparked ...

An international team used 20 years of data and photos taken by the Hubble Space Telescope to study Uranus' atmosphere and its seasonal changes. The icy world was portrayed for the first time in ...

We present new analyses of ALMA 12 m and Atacama Compact Array (ACA) observations at 233 GHz (1.3 mm) of the Proxima Centauri system with sensitivities of 9.5 and 47 mu Jy beam(-1), respectively, ...

We compare the H beta line strengths of 1.90 < z < 2.35 star-forming galaxies observed with the near-IR grism of the Hubble Space Telescope with ground-based measurements of Ly alpha from the HETDEX ...