An anonymous reader quotes a report from Engadget: A UN chief is concerned that a Cold War-era nuclear ‘coffin’ could be leaking radioactive material into the Pacific. According to Phys.org, the structure in question is on Enewetak atoll in the Marshall Islands — where the U.S. conducted 67 nuclear weapons tests between 1946 and 1958. The tests included the Castle Bravo…
Tag: hydrogen
What Mars’ giant dust storm taught us
Before we send people to Mars, we need to understand more about how Martian dust could affect astronauts and their equipment. Here are 3 things we’ve learned from the planet’s 2018 global dust storm. Source: https://earthsky.org/space/understanding-mars-dust-storms…
Unfathomably deep oceans on alien water worlds?
Distant water exoplanets might have oceans thousands of miles deep. That’s in contrast to Earth’s ocean, which is about 6.8 miles (about 11 km) deep at its deepest point. Source: https://earthsky.org/space/exoplanet-water-worlds-deep-oceans-2019-study…
Explosions of universe’s first stars spewed powerful jets
Several hundred million years after the Big Bang, the very first stars flared into the universe as massively bright accumulations of hydrogen and helium gas. Within the cores of these first stars, extreme, thermonuclear reactions forged the first heavier elements, including carbon, iron, and zinc. Source: https://phys.org/news/2019-05-explosions-universe-stars-spewed-powerful.html…
Researchers find water in samples from asteroid
Researchers have discovered water in tiny dust particles from asteroid Itokawa. Japan’s Hayabusa spacecraft brought the asteroid dust to Earth in 2010. Source: https://earthsky.org/space/researchers-find-water-samples-asteroid-itokawa…
Could this rare supernova resolve a longstanding origin debate?
Detection of a supernova with an unusual chemical signature by a team of astronomers led by Carnegie’s Juna Kollmeier—and including Carnegie’s Nidia Morrell, Anthony Piro, Mark Phillips, and Josh Simon—may hold the key to solving the longstanding mystery that is the source of these violent explosions. Observations taken by the Magellan telescopes at Carnegie’s Las Campanas Observatory in Chile were crucial…
Universe’s 1st type of molecule found at last
Scientists have detected the 1st type of molecule that ever formed in the universe – a combination of helium and hydrogen called helium hydride – in a planetary nebula near the constellation Cygnus. Source: https://earthsky.org/space/universe-1st-type-molecule-found-helium-hydride…
Vox Sentences: Decoding the Mueller report
Source: https://www.vox.com/vox-sentences/2019/4/18/18485860/vox-sentences-mueller-report-takeaways…
Astronomers Have Spotted the Universe’s First Molecule
Astronomers have detected the universe’s first molecule. “Helium hydride (HeH), a combination of helium and hydrogen, was spotted some 3000 light-years from Earth by an instrument aboard the airborne Stratospheric Observatory for Infrared Astronomy (SOFIA), a telescope built into a converted 747 jet that flies above the opaque parts of Earth’s atmosphere,” reports Science Magazine. The findings have been reported in…
Mysterious Ice Circle Appears on Frozen Salt Lake in China
If it’s springtime in the Northern Hemisphere, that means it’s time for crop circles to begin popping up in England and other places where there are large farms and people with time on their hands. Or extraterrestrials anxious to send messages using that sophisticated communications device known as the “field.” China is in the Northern… Continue reading Mysterious Ice Circle Appears on Frozen Salt Lake in China