Astrophysics

University of Arkansas physics professor Daniel Kennefick writes about the 1919 eclipse, which provided the data to confirm the revolutionary theoryCredit: Royal Astronomical Society No Shadow of a Doubt, a new book by Daniel…

Credit: NASA, ESA, and STScI This incredible image of the hourglass-shaped Southern Crab Nebula was taken to mark the NASA/ESA Hubble Space Telescope's 29th anniversary in space. The nebula, created by a binary star system, is one…

Credit: Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington How do you explore the interior of a planet without ever touching down on it? Start by watching the way the planet spins, then…

A stellar flare 10 times more powerful than anything seen on our Sun has burst from an ultracool star almost the same size as JupiterCredit: University of Warwick/Mark Garlick Coolest and smallest star to produce a superflare found…

Credit: SHENG Zhenfeng On April 11th, 2019, an international team led by Professor XUE Yongquan from University of Science and Technology (USTC) announced that they had observed a unique X-ray signal which is highly likely powered by a…

Two dense, city-sized stars collided in a galaxy far, far away; the resulting X-rays give UNLV's Bing Zhang and international team of astronomers a new way to spot when it happens and a rare glimpse into how neutron stars formCredit:…

The trick is spotting the near-Earth objects first, according to NASA researchers presenting at the 2019 APS April meeting in DenverCredit: NASA WASHINGTON, D.C., April 16, 2019 -- A mere 17-20 meters across, the…

They may be small, but CubeSats are mighty when it comes to affordably obtaining scientific data in spaceCredit: MinXSS Team WASHINGTON, D.C., April 16, 2019 -- Only a few years ago, the astronomy and heliophysics communities…

Orbiting a nearby star, the new planet is the smallest identified so far by the TESS mission NASA's Transiting Exoplanet Survey Satellite, TESS, has discovered its first Earth-sized exoplanet. The planet, named HD 21749c, is the smallest…

Credit: NASA's Goddard Space Flight Center Researchers from NASA and the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, report that streams of meteoroids striking the Moon infuse the thin lunar…