A small gas exoplanet may have lost its atmosphere billions of years ago, but then gained a second one through volcanic activity, according to astronomers. The planet, GJ 1132 b, is thought to have begun as a gaseous world, similar to Jupiter or Saturn but smaller than Neptune, with a […]
tidal forces
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Home News Science & Astronomy (Image credit: Public domain) The chunk of space rock that killed the nonavian dinosaurs may have been a piece of a comet that Jupiter's gravity kicked onto a collision course with Earth. A new study suggests that the dinosaur-killing object was not an asteroid from between Jupiter and Mars, as is…
In one scorching apocalyptic minute 66 million years earlier, Earth was changed from a rich sanctuary right into a headache globe with an intense injury that hemorrhaged residue right into the skies. The extraterrestrial things that banged right into our world meant ruin for dinosaurs as well as many various […]
A cataclysmic collision between two galaxies could leave the supermassive black hole at the centre of the larger one ‘starved of material’, astronomers claim. Experts from the University of Tokyo created the ‘most accurate simulation’ of a range of scenarios to understand what happens when galaxies merge. It was previously […]
Astronomers call it “spaghettification,” and it’s not a pretty idea: It’s what happens when you venture too close to a black hole and fall in. Tidal forces stretch you and break you like a noodle, then your shreds circle the black hole until they collide and knock each other in. […]
By Jonathan O’Callaghan Earth’s magnetic field, and the moon may have had one tooNASA The moon may have kept our planet’s atmosphere safe from a more active sun 4 billion years ago, with a magnetic field that has long since disappeared. While the moon has no magnetic field of note […]
When stars pass close to a black hole, tidal forces tear it apart, producing a bright flare of radiation as material from the star falls into the black hole. Astronomers study the light from these Tidal Disruption Events (TDEs) for clues to the feeding behaviour of the supermassive black holes […]
The Boxster is perfectly sized for a weekend corner carver. Andrew Krok/Roadshow Some cars are just so satisfying that waxing poetic does them no justice. Case in point: the 2021 Porsche Boxster GTS 4.0. It’s a two-seat convertible with a 4.0-liter flat-six engine, a manual transmission, rear-wheel drive and a […]