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During a coronal mass ejection (CME), the sun hurls billions of tons of magnetized plasma into space. These eruptions are among the most powerful events in the solar system, and when they are aimed toward Earth, they can seriously threaten the satellites and power grids we depend on. For now, it remains notoriously difficult to […] We’ve known for nearly two decades that some form of water exists on the moon. What we still don’t know is exactly how much accessible water ice lies inside permanently shadowed craters, how deeply it is buried or what form it takes. Go to Source Japan’s ambitious mission to collect and bring back samples from one of Mars’ moons will lift off Oct. 20, the space agency announced Thursday. Go to Source A new study from Monash University has delivered the most complete and accurate digital map of Earth’s windblown sand dunes to date. The research, published in Nature Communications, answers long-standing questions about why dunes form where they do, unlocking key insights into climate conditions on Earth and other planets. Go to Source […] Welcome back to our series on interstellar travel! In our first installment, we examined attempts to realize nuclear propulsion and how the technology could be used to reach the nearest star. In our second, we examined how fusion power has also been considered a means of propelling spacecraft to relativistic speeds (a fraction of the […] Astronomers have discovered a chemically rich collection of sulfur-bearing molecules surrounding the rare massive star HD 87643. The observations include the first detection of sulfur monoxide and sulfur dioxide around a B[e] supergiant. The paper was published in The Astrophysical Journal Letters on July 1. Go to Source Eclipses may be wondrous, but nothing beats seeing the northern and southern lights from space. Go to Source The mission to save NASA’s sinking Swift Observatory was called off Wednesday, dooming the telescope to a fiery reentry later this year. Go to Source Remember the “Wow!” signal? That high-energy radio signature occurred in 1977, when Earth was much “quieter” in the radio band. If it happened today, it probably wouldn’t even move the needle on the background noise of human radio chatter. Signals from satellites, radar and other human technology have crowded out extraterrestrial radio signals, limiting our […] A mysterious background of extremely low-frequency gravitational waves detected by networks of pulsars may carry information about events that began more than 13 billion years ago—including the formation of some of the first supermassive black holes in the universe. Go to Source Some of Earth’s microbes likely to hitch a ride to space with human explorers could survive in the shaded nooks and crannies of the moon’s South Pole region, NASA scientists say. Go to Source Before people can mine resources on the moon, asteroids or Mars, they need to answer a few key questions: What is there? How much is there? And where can it be found? A team led by SETI Institute research scientist Pablo Sobron is looking into a new way to answer these questions without having to […] As humanity gets closer to the possibility of long-term interplanetary travel, psychologists have started raising concerns about astronauts’ mental health. Researchers at Texas A&M University conducted research on sailors in an isolated environment to address these concerns using virtual reality technology and by introducing other senses to the experience, such as smell and touch. Go […] Astronomers have discovered the fastest known star in our galaxy, the Milky Way, orbiting the black hole at its center. The star, named S301, was detected with the European Southern Observatory’s Very Large Telescope Interferometer (ESO’s VLTI) and reaches speeds of 25,000 km/s (15,500 miles per second) as it travels around the four-million-solar-mass black hole. […] Astronomers have detected an enormous cloud of gas tens of millions of degrees hot surrounding one of the most extreme structures known in the early universe. The study offers one of the clearest views yet of a galaxy cluster in the making. Using more than 600,000 seconds of observations with NASA’s Chandra X-ray Observatory, the […] |
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