News That Matters

Tag: planet

New Horizons spacecraft ‘alters theory of planet formation’

New Horizons spacecraft ‘alters theory of planet formation’

Science
Scientists say they have "decisively" overturned the prevailing theory for how planets in our Solar System formed.The established view is that material violently crashed together to form ever larger clumps until they became worlds.New results suggest the process was less catastrophic - with matter gently clumping together instead.The study appears in Science journal and has been presented at the American Association for the Advancement of Science meeting in Seattle.The study's lead researcher, Dr Alan Stern, said that the discovery was of "stupendous magnitude". "There was the prevailing theory from the late 1960s of violent collisions and a more recent emerging theory o...
How plastic bags were supposed to help save the planet

How plastic bags were supposed to help save the planet

Science
The plastic carrier bag has become something of a symbol for the problems caused by plastic pollution.But according to the family of the man who created it, Sten Gustaf Thulin, his design was supposed to help the planet and he'd be shocked and upset to see what it's become.The Thulin family make no money from the sale of the bags.BBC Environment Reporter Laura Foster explains what was supposed to happen and why paper and cotton bags can actually be worse for the environment than plastic ones that are recycled.Let's block ads! (Why?) BBC News - Science & Environment
Giant planet around tiny star ‘should not exist’

Giant planet around tiny star ‘should not exist’

Science
Astronomers have discovered a giant planet that, they say, should not exist, according to current theories.The Jupiter-like world is unusually large compared with its host star, contradicting a widely held idea about the way planets form.The star, which lies 284 trillion km away, is an M-type red dwarf - the most common type in our galaxy.An international team of astronomers has reported its findings in the journal Science. "It's exciting because we've wondered for long a time whether giant planets like Jupiter and Saturn can form around such small stars," said Prof Peter Wheatley, from the University of Warwick, UK, who was not involved with the latest study."I think the general impression had been that these planets just didn't...
Water found for first time on potentially habitable planet

Water found for first time on potentially habitable planet

Science
Astronomers have for the first time discovered water in the atmosphere of a planet orbiting within the habitable zone of a distant star. The finding makes the world - which is called K2-18b - a plausible candidate in the search for alien life.Within 10 years, new space telescopes might be able to determine whether K2-18b's atmosphere contains gases that could be produced by living organisms.Details were published in the scientific journal Nature Astronomy.The lead scientist, Prof Giovanna Tinetti of University College London (UCL) described the discovery as "mind blowing"."This is the first time that we have detected water on a planet in the habitable zone around a star where the temperature is potentially compatible with the pre...