Super-huge comet rushes through space towards the solar system, Science News

Talk about comets or asteroids approaching us and the mind immediately reverts to what happened to the dinosaurs. It just needed a rock in space to end the reign of these formidable reptiles that dominated almost the entire food chain. The asteroid that killed the dinosaurs was only 10 kilometers in diameter. But now, a […]

Why the solar system’s active volcanoes are the key to life on other worlds

Why the solar system’s active volcanoes are the key to life on other worlds Calendar An icon of a desk calendar. to cancel An icon of a circle with a diagonal line across. Caret A block arrow icon pointing right. E-mail An icon of a paper envelope. Facebook A Facebook “f” brand icon. Google A […]

Understand how big solar flares can be

To be clear, Proxima Centauri is not like the Sun. It’s a dwarf M, a little orb that glows red. And these little stars are famous for their oversized flares. But some solar stars can also send super flares. This achievement came from telescopes in space designed to search for planets around other stars. NASA’s […]

Carolyn Shoemaker obituary | Astronomy

Carolyn Shoemaker was a housewife without a science degree when, at age 51, she began researching comets and asteroids with her astrogeologist husband, Gene Shoemaker. By the time of her death at the age of 92 from a fall, she had established herself as one of the leading hunters of such bodies of her generation. […]

Formation of terrestrial planets by convergent migration driven by pair of planetary embryos

Formation of terrestrial planets by convergent migration driven by a pair of planetary embryos Status report of: Electronic print archive arXiv.org Posted: Monday September 27 2021 M. Brož, O. Chrenko, D. Nesvorný, N. Dauphas The massive nuclei of giant planets are believed to have formed in a gas disk by accretion of pebble-sized particles whose […]

Formation of terrestrial planets by convergent migration driven by pair of planetary embryos

Formation of terrestrial planets by convergent migration driven by pair of planetary embryos Status report of: Electronic print archive arXiv.org Posted: Monday September 27 2021 M. Brož, O. Chrenko, D. Nesvorný, N. Dauphas The massive nuclei of giant planets are believed to have formed in a gas disk by accretion of pebble-sized particles whose accretion […]

A megacomet is heading towards our solar system. Should we be worried?

A massive comet, larger than two moons of the planet Mars combined, is approaching our solar system. The Bernardinelli-Bernstein mega-comet, named after Pedro Bernardinelli and Gary Bernstein, has been dubbed the largest comet man has seen and is also often referred to as “the nearly spherical cow of comets.” Also read: Comet killed dinosaurs, not […]

Bad astronomy | Planetary-scale collisions may have shaped the Earth, Venus and the Moon

A big problem when trying to figure out how the planets were formed is that it happened 4.55 billion years ago. The file is a bit hazy now. We have a lot of science and understanding of the planet building processes, and can model them on computers by solving the various equations involved. But these […]

Study Says ‘Monster Comet’ Heads For Solar System, Larger Than Mars (Photo)

In a recent study, researchers from the International Dark Energy Survey Project, or Dark Energy Survey, discovered new data on comet Bernardinelli-Bernstein. This star, officially called object C / 2014 UN271, has a diameter of up to 150 km, or about seven times the diameter of Phobos. satellites of mars. Through successive studies, the size […]