Scientists at NASA's Jet Propulsion Laboratory have published new findings showing Earth's center of mass constantly shifts by several millimeters each season, a phenomenon that could affect the satellite systems modern shipping and agriculture depend on. A team led by Dr. Donald Argus developed a new ultraprecise satellite tracking technique to measure how water, ice, […] The post NASA study finds Earth's center of mass shifts with the seasons, raising questions about navigation accuracy appeared first on American Almanac .
Scientists at NASA's Jet Propulsion Laboratory have published new findings showing Earth's center of mass constantly shifts by several millimeters each season, a phenomenon that could affect the satellite systems modern shipping and agriculture depend on. A team led by Dr. Donald Argus developed a new ultraprecise satellite tracking technique to measure how water, ice, and air redistribute across the planet throughout the year, tugging Earth's center of mass in different directions month by month. The study, published in the Geophysical Journal International, maps a seasonal cycle that swings the planet's mass center toward the North Pole in winter and toward South America in spring, shifts measured in millimeters but large enough to…Open
NASA astronaut Jessica Meir shared a video from the International Space Station walking fellow curly-haired viewers through her zero-gravity hair-care routine, and the results are out of this world. Meir, stationed roughly 260 miles above the planet, demonstrated how she washes and conditions her curls without the luxury of a shower, running water, or even […] The post NASA astronaut Jessica Meir shows how she manages curly hair 260 miles above Earth appeared first on American Almanac .
NASA astronaut Jessica Meir shared a video from the International Space Station walking fellow curly-haired viewers through her zero-gravity hair-care routine, and the results are out of this world. Meir, stationed roughly 260 miles above the planet, demonstrated how she washes and conditions her curls without the luxury of a shower, running water, or even gravity to keep things in place. The video, first spotlighted by the New York Post , walks viewers step by step through a process most people on the ground take for granted every morning. Her routine starts with weightless drops of water applied directly to her head, droplets that float freely in microgravity rather than running down like they would on Earth. From there, Meir works in…Open
SpaceX is targeting Wednesday, September 16 for a Falcon 9 launch of the USSF-259 mission from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California. The four-hour launch window opens at 6:00 p.m. PT. This will be the 13th flight for the first stage booster supporting this mission, which previously launched Sentinel-6B, Twilight, NROL-172, Transporter-17, and eight Starlink missions. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, which will be stationed in the Pacific Ocean. Watch 24/7 live news with CNN Headlines: https://bit.ly/4eIvlTr #News #space
A peer-reviewed study warns that the moon's finite water ice reserves would run dry in as little as two years for a million-person city without recycling, a reality check aimed squarely at SpaceX's ambitious lunar colonization plans. Astronomers Martin Elvis and Jonathan McDowell published their findings in the journal Frontiers in Space Technologies, and the […] The post Lunar water supply could limit moon settlements to small outposts, new research finds appeared first on American Almanac .
A peer-reviewed study warns that the moon's finite water ice reserves would run dry in as little as two years for a million-person city without recycling, a reality check aimed squarely at SpaceX's ambitious lunar colonization plans. Astronomers Martin Elvis and Jonathan McDowell published their findings in the journal Frontiers in Space Technologies, and the numbers cut against the grand visions of sprawling lunar metropolises that have dominated space policy conversations in Washington and Silicon Valley alike. Even under the most optimistic water estimates, a large settlement would face hard physical limits that no amount of federal spending or private-sector enthusiasm can wish away. The study lands at a moment when both NASA and…Open
The smallest planet in our solar system is contracting far more rapidly than researchers estimated, with a new study revealing that impact debris has been hiding the true scale of Mercury's slow collapse for billions of years. Scientists at the German Aerospace Center's Institute of Space Research reported Thursday that Mercury's diameter may have shrunk […] The post Mercury shrinking 30 percent faster than scientists believed, new study finds appeared first on American Almanac .
The smallest planet in our solar system is contracting far more rapidly than researchers estimated, with a new study revealing that impact debris has been hiding the true scale of Mercury's slow collapse for billions of years. Scientists at the German Aerospace Center's Institute of Space Research reported Thursday that Mercury's diameter may have shrunk by as much as 14 miles, roughly 30 percent more than previous estimates suggested. The findings, published in the peer-reviewed journal Geophysical Research Letters, upend decades of assumptions about how quickly the solar system's innermost planet has been cooling and contracting since it formed 4.5 billion years ago. The key discovery came down to what researchers could not see.…Open
A peer-reviewed study from the German Aerospace Center reports that Mercury has lost up to 14 miles of diameter over its lifetime, roughly 30 percent more contraction than scientists previously measured. Researchers led by Gaku Nishiyama, a planetary scientist affiliated with Hokkaido University in Japan, compared maps of geologic faults and contraction features against surface […] The post Mercury is shrinking faster than anyone realized, new study finds appeared first on American Almanac .
A peer-reviewed study from the German Aerospace Center reports that Mercury has lost up to 14 miles of diameter over its lifetime, roughly 30 percent more contraction than scientists previously measured. Researchers led by Gaku Nishiyama, a planetary scientist affiliated with Hokkaido University in Japan, compared maps of geologic faults and contraction features against surface roughness data built from NASA's Messenger spacecraft imagery . What they found was straightforward: the roughest patches of Mercury's battered surface showed far fewer of the wrinkle-like ridges that signal planetary shrinkage. The reason, the team concluded, is that billions of years of asteroid and comet impacts buried those ridges under debris, hiding the true…Open
SpaceX will attempt to launch its Falcon 9 rocket for a classified mission for the US Space Force. The three-hour launch window opens at 8:37am Pacific/11:37am Eastern. The mission, the 27th flight for this particular first stage booster, is designated USSF-153 and will launch from Vandenberg Space Force Base in California. Following stage separation, the first stage is expected to land on a drone ship stationed in the Pacific Ocean. Watch 24/7 live news with CNN Headlines: https://bit.ly/4eIvlTr #SpaceX #Launch #News
The SPACE task force will implement President Donald Trump's National Space Transportation Policy which includes recommendations to expand launch infrastructure, streamline regulation and coordinate space policy for the department.
NASA administrator Jared Isaacman joins 'Mornings with FOX Business' to discuss data centers in space and the thoughts surrounding NASA's permanence on the moon. #foxbusiness #fox #morningswithfoxbusiness #nasa #ai #datacenters #space economy #technology #innovation #usnews #business
On Tuesday’s "Hot Take," Jesse Weber breaks down the terrifying new reality of ‘orbital dogfighting’ and how the U.S. and China are preparing for a potential conflict in space. Joining the show is Peter Hays, adjunct professor at the Space Policy Institute at George Washington University, to discuss hunter satellites, secretive spaceplanes, and whether we are entering a brand new space arms race.
