Science

[ad_1] NASA and SpaceX executives concluded a two-day flight readiness review on Tuesday and provisionally cleared a Falcon 9 rocket and Crew Dragon capsule for launch Saturday, weather conditions and last-minute repairs permitting, on a flight to ferry four astronauts to the International Space Station. “This is a great day,” …

[ad_1] Forget glue, screws, heat or other traditional bonding methods. A collaboration led by Cornell University has developed a 3D printing technique that creates cellular metallic materials by shattering dust particles together at supersonic speed. This form of technology, known as “cold spray”, results in mechanically robust porous structures that …

[ad_1] The discovery of a 2-million-year-old skull in a South African cave is changing what we think we know about one of humanity’s primitive ancestors, scientists report in a new study. But the fossil specimen recently unearthed from the extinct human species Paranthropus robustus it is also offering researchers a …

[ad_1] The universe is getting hotter, a new study has discovered. The study, published on October 13 on Astrophysical Journal, probed the thermal history of the universe over the past 10 billion years. He found that the average gas temperature in the universe increased more than 10 times over that …

[ad_1] The SpaceX Crew Dragon “Resilience” spacecraft on the launch pad prior to the launch of Crew-1 for NASA. SpaceX The National Aeronautics and Space Administration announced Tuesday that it has certified SpaceX’s Crew Dragon capsule and Falcon 9 rocket to transport astronauts to and from orbit, the agency’s first …

[ad_1] Over 1,000 kilograms of so-called interplanetary dust are thought to fall on Earth every day. This dust is essentially an untold number of small faint meteors, discarded remnants of asteroids and comets that pass close to Earth. Two ways to study faint meteors are radar and optical observations, each …

[ad_1] The Great Barrier Reef has lost 50% of its coral populations over the past three decades, with climate change a key driver of the reef disturbance, a new study has found. Researchers from the ARC Center of Excellence for Coral Reef Studies in Queensland assessed coral communities and the …

[ad_1] This image shows cells adhering to a titanium alloy created by cold spray 3D printing, which demonstrates the material’s biocompatibility. Credit: Cornell University Forget glue, screws, heat or other traditional bonding methods. A collaboration led by Cornell University has developed a 3-D printing technique that creates cellular metallic materials …

[ad_1] A laser filament – created by the interaction between a pulsed laser and the plasma sphere it creates – will allow optical data to be sent to satellites through atmospheric interference. Credit: Rensselaer Polytechnic Institute Could light be used to transmit information between satellites and the Earth? Atmospheric water …

[ad_1] Jacky Dragon. Credit: UNSW Sydney. Lisa Schwanz. A new study conducted at the University of New South Wales and published in the November / December 2020 issue of Physiological and biochemical zoology highlights a possible connection between an animal’s environmental conditions and the characteristics of its offspring. The study, …