A new analysis of chemical signatures measured by NASA’s Curiosity Rover gives a peek at Mars’s past to a time some 3.7 billion years ago, when it was warmer and wetter.
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A new analysis of chemical signatures measured by NASA’s Curiosity Rover gives a peek at Mars’s past to a time some 3.7 billion years ago, when it was warmer and wetter. Go to Source Mars is an inhospitable desert planet. Billions of years ago, things were different. In Jezero Crater, for example, fed by a vast river delta, there was probably a considerable body of water roughly the size of Lake Constance. Conditions conducive to life may have prevailed there. Go to Source For the first time, scientists have the calculations and simulations to explain mysterious flashes from the galaxy OJ 287. Roughly twice every 12 years, from 3.5 billion light years away, the light equivalent of 1 trillion suns flashes in the night sky and then fades away over the next few months. It’s a phenomenon that […] The European Space Agency’s upcoming Henon mission will be the first ever CubeSat to independently venture into deep space, communicate with Earth and maneuver to its final destination without relying on a bigger spacecraft. Once in its orbit around the sun, the carry-on luggage-sized CubeSat will observe the sun’s emissions to demonstrate technologies capable of […] New research conducted by an international team of physicians has found that high-energy gamma rays might offer the key to unlocking the mysteries of the sun’s magnetic fields. Go to Source Astronomers from the International Centre of Radio Astronomy Research (ICRAR) have created the largest low-frequency radio color image of the Milky Way ever assembled. This spectacular new image captures the Southern Hemisphere view of our Milky Way galaxy, revealing it across a wide range of radio wavelengths, the colors of radio light. Go to Source […] This new NASA/ESA/CSA James Webb Space Telescope Picture of the Month features a cosmic creepy-crawly called NGC 6537—the Red Spider Nebula. Using its Near-InfraRed Camera (NIRCam), Webb has revealed never-before-seen details in this picturesque planetary nebula with a rich backdrop of thousands of stars. Go to Source In May 2024, part of the sun exploded. Go to Source Astronomers have used simultaneous ground-based and space-based observations to measure the temperature and velocity of gas ejected from a young sun-like star. The result showed a two-component ejection consisting of a hot fast component followed by a slower, cooler component. This result is important for understanding how young stars affect their surrounding environment where planets […] In a paper published in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA Collaboration reports on the detection of two gravitational wave events in October and November of 2024 with unusual black hole spins. This observation adds an important new piece to our understanding of the most elusive phenomena in the universe. Go to Source […] Meng Dezhao, a Ph.D. student from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, together with his collaborators, has conducted a systematic study of the filamentary structure within the G53 molecular cloud. By combining multi-wavelength observations and simulations, they revealed for the first time that the filament is undergoing an “end-dominated collapse” (EDC), […] So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and helium, and fluctuations of energy and matter set into motion the formation of galaxies and supermassive black holes. But all of it is invisible to us. Go to Source Could scientists find life in the clouds of exoplanet atmospheres? This is what a manuscripton the arXiv preprint server hopes to address as a team of researchers investigate how the biosignatures of microbes could be identified in exoplanet atmospheres and clouds. Go to Source An international team of astronomers have employed the James Webb Space Telescope (JWST) to observe a nearby M-dwarf star known as TWA 20. As a result, they detected a large debris disk around this star. The finding was reported in a paper published October 23 on the arXiv pre-print server. Go to Source […] In the beginning, Earth was a violent place with no atmosphere to soften the blow. Go to Source |
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