Dan Barwell – Page 41

Asteroid Pallas’ violent history uncovered in new pictures

17Feb

By Dan BarwellNo Comments

Science

Asteroid Pallas’ violent history uncovered in new pictures

A gigantic, intensely cratered asteroid known as Pallas has a violent history, researchers uncovered in a new investigation. Pallas, which is the third biggest object in the asteroid belt and named after the Greek goddess of wisdom, can be seen in detailed pictures published Monday in a study in Nature Astronomy. Specialists believe that the asteroid's pockmarked surface is an aftereffect of its one of a kind orbit. Pallas has a tilted orbit, so it is essentially smashing through the asteroid belt at an angle, not at all like most other comparable objects. "Pallas' orbit implies very high-velocity impacts," Michaël Marsset, the paper's lead author and a postdoctoral student in MIT's Department of Earth, Atmospheric and Planetary Sciences, told MIT News. "From these images, we ...

Spacetime ‘Echoes’ From Quantum Black Holes could soon transform physics eternally

12Feb

By Dan BarwellNo Comments

Physics

Spacetime ‘Echoes’ From Quantum Black Holes could soon transform physics eternally

Researchers are racing to affirm the detection of black hole "echoes" that could unlock exotic new branches of physics and extend comprehension of the fabric of the real world. A key mystery about black holes may be resolved by frightful "echoes" in spacetime, which could unlock a completely new branch of exotic physics on the off chance that they are ever identified. The echoes may have just been distinguished, as indicated by a recent report published in the Journal of Cosmology and Astroparticle Physics, however, it will take more perceptions and research no doubt. These signals, assuming they exist, would be made by close interactions with black holes, and they could help researchers with affirming whether matter that enters black holes is genuinely gone for eternity. “Thi...

SpaceX wins NASA agreement to launch Earth science mission

10Feb

By Dan BarwellNo Comments

Space

SpaceX wins NASA agreement to launch Earth science mission

NASA awarded an agreement to SpaceX Feb. 4 for the launch of an Earth science mission has successfully staved off cancellation a few times. NASA declared it selected SpaceX to launch the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) spacecraft on a Falcon 9 from Cape Canaveral, Florida, in December 2022. The organization said the agreement is valued at $80.4 million, covering the launch and related services. SpaceX independently said the launch will utilize a "flight-proven" Falcon 9, one where the rocket's first stage has previously propelled at least one mission. “SpaceX is honored to continue supporting NASA’s critical scientific observational missions by launching PACE, which will help humanity better understand, protect and preserve our planet,” Gwynne Shotwell, president ...

Researchers discover proof that Venus has active volcanoes

4Jan

By Dan BarwellNo Comments

Science

Researchers discover proof that Venus has active volcanoes

New research led by Universities Space Research Association (USRA) and published today in Science Advances shows that lava flows on Venus might be just a few years old, recommending that Venus could be volcanically active today—making it the only planet in the solar system, other than Earth, with recent eruptions. "If Venus is indeed active today, it would make a great place to visit to better understand the interiors of planets," says Dr. Justin Filiberto, the study's lead author and a Universities Space Research Association (USRA) staff scientist at the Lunar and Planetary Institute (LPI). "For example, we could study how planets cool and why the Earth and Venus have active volcanism, but Mars does not. Future missions should be able to see these flows and changes in the surface and...

SpaceX’s Starlink satellites are now messing with astronomical research however there are thousands more arranged

28Nov

By Dan BarwellNo Comments

Science

SpaceX’s Starlink satellites are now messing with astronomical research however there are thousands more arranged

Elon Musk's plan to station a huge number of satellites over the Earth is as of now beginning to bother cosmologists. Starlink is the project propelled by Elon Musk's space investigation organization SpaceX which intends to set up to 42,000 satellites in orbit with the point of carrying high-speed internet to even the most remote corners of the globe. In spite of the fact that only 120 of the satellites are up and running, they're now wreaking havoc with astronomical research. The brightness of the satellites implies that when they cross a piece of the sky being viewed by a telescope, they leave splendid streaks that obscure stars and other celestial objects. A week ago astronomer Clarae Martínez-Vázquez of the Cerro Tololo Inter-American Observatory (CTIO) in Chile tweeted...

The promising revelation could prompt a superior, less expensive solar cell

1Nov

By Dan BarwellNo Comments

Science

The promising revelation could prompt a superior, less expensive solar cell

McGill University specialists have increased tantalizing new insights into the properties of perovskites, one of the world's most promising materials in the mission to create a progressively productive, strong and less expensive solar cell. In an examination published in Nature Communications, the scientists utilized a multi-dimensional electronic spectrometer (MDES) – an interesting instrument hand-built at McGill—to watch the conduct of electrons in cesium lead iodide perovskite nanocrystals. The MDES that mentioned these observations possible is fit for estimating the conduct of electrons over phenomenally brief periods of time—down to 10 femtoseconds, or 10 millionths of a billionth of a second. Perovskites are apparently strong crystals that previously attracted consideration 201...

Physicists make a startling new type of Plutonium

22Oct

By Dan BarwellNo Comments

Physics

Physicists make a startling new type of Plutonium

One of the most major properties of the chemical conduct of Pu is the assortment of its oxidation states (the oxidation state is characterized by the number of electrons that are expelled from the valence orbitals of a neutral atom). Four oxidation states (from III to VI) may coincide under environmental conditions, (VII) and even (VIII) states are proposed to be steady under highly alkaline oxidative conditions. Pu in the pentavalent oxidation state, Pu (V), has three electrons in the 5f shell, leaving the 6d orbitals void. “It all started when we were trying to create plutonium dioxide nanoparticles using different precursors,” said Dr. Kristina Kvashnina, a physicist at the Helmholtz Zentrum Dresden-Rossendorf and based at the ROBL beamline at the European Synchrotron, and ...