The ancient lake bed, sealed more than a mile under Greenland ice, may be hundreds of thousands or millions of years old, and contain unique fossil and chemical traces of past climates and life. Source: https://earthsky.org/earth/ancient-lake-bed-deep-beneath-greenland-ice…
Tag: Radar
Researchers give radar new abilities using optical data about meteors
It is thought that over 1,000 kilograms of so-called interplanetary dust falls to Earth every day. This dust is produced by an untold number of small faint meteors, discarded remnants of asteroids and comets that pass by the Earth. Two ways to study faint meteors are radar and optical observations, each with advantages and limitations. Astronomers have combined specific observations with…
Viking ship in Norway buried near cult temple, feast hall and funeral mounds
Archaeologists located the buried Viking ship and ritual center in Norway with ground-penetrating radar. Source: https://www.livescience.com/viking-ship-cult-burial.html
Jousting yard where Henry VIII nearly died just discovered 5 feet under
Radar technology has revealed exactly where Henry VIII had a traumatic brain injury while jousting. Source: https://www.livescience.com/henry-viii-jousting-tiltyard-found.html
Astronomers measure a change in orbit for infamous asteroid Apophis
Astronomers in Hawaii have detected the Yarkovsky effect – a minuscule push imparted by sunlight – for asteroid Apophis. The effect is particularly important for Apophis, because it relates to the possibility of an Earth impact in 2068. Source: https://earthsky.org/space/asteroid-99942-apophis-encounters-2029-2036-2068…
Life-hunting Perseverance rover is halfway to Mars
NASA announced that its Perseverance rover mission – which will search for evidence of ancient microbial life on Mars – has now passed the halfway mark in its journey to the planet. Source: https://earthsky.org/space/perservance-rover-halfway-to-mars-nasa-astrobiology…
Facebook Tells Academics To Stop Monitoring Its Political Ads
couchslug shares a report from The Register: Facebook has ordered the end to an academic monitoring project that has repeatedly exposed failures by the internet giant to clearly label political advertising on its platform. The social media goliath informed New York University (NYU) that research by its Tandon School of Engineering’s Online Transparency Project’s Ad Observatory violates Facebook’s terms of service…
‘Fireball’ meteorite contains pristine extraterrestrial organic compounds
On the night of January 16, 2018, a fireball meteor streaked across the sky over the Midwest and Ontario before landing on a frozen lake in Michigan. Scientists used weather radar to find where the pieces landed and meteorite hunters were able to collect the meteorite quickly, before its chemical makeup got changed by exposure to liquid water. And, as a…
NATO to set up new space center amid China, Russia concerns
To a few of the locals, the top-secret, fenced-off installation on the hill is known as “the radar station.” Some folks claim to have seen mysterious Russians in the area. Over the years, rumors have swirled that it might be a base for U.S. nuclear warheads. Source: https://phys.org/news/2020-10-nato-space-center-china-russia.html…
Radar reveals 3 more subsurface polar lakes on Mars
Scientists with the European Space Agency say that the Mars Express orbiter has found evidence of three more salty lakes below Mars’ south pole. The discovery comes two years after the first lake was detected in 2018. Source: https://earthsky.org/space/3-more-subsurface-lakes-mars-south-pole…