The moon has been bathed in solar wind for billions of years, but the two hemispheres are struck by solar wind of different speeds and energies.
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The moon has been bathed in solar wind for billions of years, but the two hemispheres are struck by solar wind of different speeds and energies. Go to Source For more than a century, astronomers have puzzled over a strange discrepancy in the historical record. Theta Eridani, a modest star in the constellation Eridanus, is the third-brightest star in its constellation, with a magnitude of 2.9. But ancient astronomers described it very differently. A new study, posted to the arXiv preprint server on June […] An international team of astronomers has performed follow-up observations of a peculiar Type Ia supernova designated SN 2023vjh. Results of the observational campaign, published July 9 on the preprint server arXiv, deliver important insights into the nature of this explosion. Go to Source This composite of images taken by NASA’s Psyche mission shows the crescent of Mars grow as the spacecraft approached the planet for a gravity assist from May 2 to May 15, 2026. Go to Source The spacecraft aced its encounter with Mars. Now, mission scientists are studying a trove of data from the flyby in preparation for its arrival at asteroid Psyche in 2029. Go to Source India’s first privately built orbital rocket took its maiden flight Saturday, its company said, marking a significant step for the South Asian giant as it eyes a bigger slice of the global space economy. Go to Source America’s most daring, extraordinary feat—landing astronauts on the moon—remains the pinnacle of achievement by anyone anywhere. Ever. Go to Source Reflect Orbital moves ahead with the company’s first Eärendil launch amid concerns from the astronomical community. Go to Source Cosmic rays are made primarily of protons with a few electrons sprinkled in, and they can reach energies even higher than what human-made accelerators can produce. Considering human-made accelerators, such as the Large Hadron Collider on the border of Switzerland and France, can move protons to near the speed of light, it’s no wonder that […] Researchers at Uppsala University have calculated that the sun contains 55% more silver than previously estimated. The results are based on more realistic modeling of the sun’s atmosphere and resolve a long-standing problem of missing silver in the solar system. Go to Source Researchers in the U.S. have carried out the most stringent tests to date of the idea that an ultraviolet glow in the atmospheres of giant planets could partly arise through the indirect interaction between dark matter and ordinary matter. Led by Carlos Blanco at Princeton University, the team’s results place some of the tightest constraints […] Private companies are reshaping India’s space ambitions, building rockets and satellites as the country pushes to capture a bigger share of the global space economy. Go to Source SpaceX’s mega Starship rocket came within a second or so from blasting off on a test flight Thursday, but some of the engines failed to ignite, triggering a launch abort amid billowing clouds of smoke and vapor. Go to Source The 570-megapixel Department of Energy-fabricated Dark Energy Camera (DECam) captures a vibrant scene filled with swirls and stars reminiscent of Van Gogh’s The Starry Night. This new cosmic masterpiece features the glowing nebula NGC 6729 on the left and the globular star cluster NGC 6723 on the right. DECam is mounted on the U.S. National […] In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere surrounding an Earth-like, rocky planet orbiting within the habitable zone of another star. The finding provides the strongest evidence yet that worlds with conditions similar to Earth in composition and temperature, with the potential […] |
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