When a black hole chews up a star, it produces visible light or X-rays, but astronomers have almost never detected both types of radiation. Astronomer Peter Jonker (SRON/Radboud University) and his colleagues have now spotted a number of captured stars with an X-ray telescope a few years after they were discovered in optical light. It ...
It’s “almost a racing certainty” there’s alien life on Jupiter’s moon Europa — and Mars could be hiding primitive microorganisms, too. That’s the view of leading British space scientist Professor Monica Grady, who says the notion of undiscovered life in our galaxy isn’t nearly as far-fetched as we might expect. Professor Grady, a Professor of Planetary ...
For the first time, researchers from Bonn University and Strasbourg University have simulated the formation of galaxies in a universe that works without dark matter. Instead, they modified Newton’s laws of gravity to simulate this process on the computer. A galaxy that is created with computer calculations is similar to those that we actually see today ...
Back in 1972, NASA sent their last team of astronauts to the Moon in the Apollo 17 mission. These astronauts brought Moon dust and rocks back to Earth so scientists could continue to study lunar soil in their labs. Since we haven’t returned to the Moon in almost 50 years, every lunar sample is precious. ...
Just released first images from the National Science Foundation’s Daniel K. Inouye Solar Telescope reveal unprecedented detail of the Sun’s surface and preview the world-class products to come from this preeminent 4-meter solar telescope. NSF’s Inouye Solar Telescope, on the summit of Haleakala, Maui, in Hawai‘i, will enable a new era of solar science and ...
After almost 20 years of patient monitoring, an international team of astronomers has witnessed the very fabric of space-time being dragged around a rapidly-rotating exotic star known as a white dwarf. The effect is a consequence of Einstein’s General Theory of Relativity and the result was published in the journal Science. When massive stars are born, they ...
Elon Musk’s SpaceX successfully finished an abort maneuver of its Crew Dragon spacecraft, demonstrating that it has the ability to get astronauts to safety in case an unforeseen emergency threatens their journey. This brings Musk’s dream of using Crew Dragon to launch astronauts to space one step closer to reality. The test “The rehearsal at ...
NASA’s Kepler spacecraft was designed to find exoplanets by looking for stars that dim as a planet crosses the star’s face. Fortuitously, the same design makes it ideal for spotting other astronomical transients — objects that brighten or dim over time. A new search of Kepler archival data has uncovered an unusual super-outburst from a ...
Astronomers from UCLA’s Galactic Center Orbits Initiative have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius A*. They published their research in the journal Nature. “These objects look like gas and behave like stars,” said co-author Andrea Ghez, UCLA’s Lauren B. ...
Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two outbound comets heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond. Not all comets follow closed ...
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