Science

A new study published in Science Advances is upending decades of scientific belief about the history of the Arctic. Contrary to the long-held theory that a massive, kilometer-thick ice shelf blanketed the Arctic Ocean during the coldest ice ages, new evidence suggests that the Arctic was never fully frozen. By analyzing ancient ocean mud and conducting advanced climate simulations, researchers …

Play How Much Would You Pay For A Rock From Mars? Who would pay several million dollars for a hunk of red, brown and gray rock? Well, when that rock is the largest piece of Mars ever found on Earth, there may be plenty of candidates. Sotheby’s will be auctioning off an impressively large chunk of the red planet in …

Perseverance is hitting the ‘open road’ on Mars like no other rover. On June 19, the six-wheeled explorer officially completed the longest road trip of any robot vehicle on another planet. In a single drive, the rover rolled over 411 meters of Mars‘ rocky surface (more than a quarter mile). Related: Perseverance Found a Zebra-Striped Rock on Mars, And NASA …

A beautiful turquoise‑and‑lilac sea creature that has been kept in hobbyist aquariums around the world for nearly two decades has finally been given a scientific species name. The modest crustacean hiding in plain sight turns out to be Cherax pulverulentus, an entirely new crayfish species no biologist had cataloged until now. Jiří Patoka of the Czech University of …

Inaccessible Island, located in the Tristan Archipelago, is home to a rare and enigmatic species—the Inaccessible Island rail (Atlantisia rogersi). This unique bird is the world’s smallest extant flightless bird, with an adult size of just 5-6 inches and weighing only 34-49 grams. Recent research has uncovered the mystery of how this bird species arrived on the island, shedding light …

The Lambda Cold Dark Matter (LCDM) theory suggests that most galaxies are low-mass dwarf galaxies, many of which orbit larger galaxies like the Milky Way. More broadly, the LCDM represents our best understanding of how the universe works. But there’s a problem. According to the theory, the Milky Way should have significantly more satellite galaxies than scientists have observed with …

NASA’s Parker Solar Probe is no stranger to breaking records. On Dec. 24, 2024, Parker made history by flying closer to the sun than any spacecraft in history. The probe reached a distance of just 3.8 million miles (6.1 million kilometers) from the solar surface, entering the outermost layer of the sun’s atmosphere, known as the corona. During this flyby, …

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves using the US National Science Foundation (NSF)-funded LIGO observatories. The powerful merger produced a final black hole approximately 225 times the mass of our Sun. The signal, designated GW231123, was detected during the fourth observing run of the LVK network on …

Tens of thousands of pieces of space debris are hurtling around Earth right now. These defunct satellites, spent rocket stages, collision fragments and even a toolbox threaten active spacecraft and could trigger cascading disasters that make space unusable for generations. Since removing just a single piece of debris can cost tens of millions of dollars, the critical question becomes which …

SpaceX partners with Israel to launch Dror 1 satellite  The Jerusalem Post Israel’s most-advanced communications satellite successfully launched into space  The Times of Israel SpaceX launches Israeli satellite on a Falcon 9 rocket from Cape Canaveral  Spaceflight Now SpaceX launches mystery satellite to geostationary transfer orbit (video)  Space Space Coast’s 60th launch of year also Falcon 9’s 500th successful SpaceX mission  Phys.org Source link