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K2-18b is 111 light-years - about 650 million million miles - from Earth, too far to send a probe. "But it is a view that Dr Laura Kreidberg, of the Centre for Astrophysics at Harvard University does not agree with. These are external links and will open in a new window So the only option is to wait for the next generation of space telescopes to be launched in the 2020s and to look for gases in the planet's atmosphere that could only be produced by living organisms. "So we might find that they have evolved — birds — on this ocean planet," he added, referring to Kepler-62e.Water worlds are unlikely to host technologically advanced civilizations like our own, Borucki and other researchers said, because any lifeforms that take root there would not have easy access to electricity or fire for metallurgy.But if Kepler-62e or f has some dry land, Borucki said, the story could be different. Less than 3 percent of all water on Earth is freshwater (usable for drinking). Earth’s oceans contain about 96.5 percent of all the planet’s water. The Earth of 3.2 billion years ago was a "water world" of submerged continents, geologists say after analyzing oxygen isotope data from ancient ocean crust that's now exposed on land in Australia. )Imagine an early Earth that's covered in water—and nothing else.

"Now, whether this planet really has an ocean at the surface or rock, we cannot tell with current observations, but having water in the atmosphere is a good start. The Harvard-Smithsonian Center for Astrophysics said it has discovered a so-called super Earth that orbits round a red dwarf star 40 light years from our own planet. © But if we find all that around a planet around a distant star we have to be cautious about saying that it supports life," she said. Morgan McFall-Johnsen For example, Borucki raised the possibility that the newfound ""At least in our ocean, we have flying fish. The new planet is just over twice the size of Earth - in a planet category known as a "super Earth" - and has a temperature cool enough to have liquid water, between zero and 40C. It has oxygen, water and ozone. While Kepler-62e is likely hot and muggy all the way up to the polar regions, Kepler-62f orbits a bit farther away from the host star and is probably cooler.In fact, a thick atmosphere with lots of heat-trapping carbon dioxide may be required to keep Kepler-62f's surface water liquid. The other two worlds are in the Kepler-69 system, which lies about 2,700 light-years from Earth.The newly discovered Kepler-69c, which is 1.7 times larger than Earth, may also be capable of supporting life, researchers said.Get breaking space news and the latest updates on rocket launches, skywatching events and more!Thank you for signing up to Space. New research suggests that back then, all of these features were covered by a global ocean.The researchers conducted isotopic analysis on a sample of ancient oceanic crust from the wild outback of northwest Australia. You will receive a verification email shortly.There was a problem.
You may be able to find more information on their web site. )This work helps scientists develop constraints for when major continents formed or when life first appeared. They 'fly' to get away from predators," Borucki said. This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Waterworld: up to 50% of the atmosphere of K2-18b may be composed of water

An ocean world, ocean planet, water world, aquaplanet or panthalassic planet is a type of terrestrial planet that contains a substantial amount of water either at its surface or within a subsurface ocean. ESA's Ariel mission in 2028 could help confirm the presence of life on other worlds Water World discovered by Harvard astronomers. Ceres, believed to be a barren space rock, has an ‘extensive reservoir’ of brine beneath its surface, images showThe dwarf planet Ceres – long believed to be a barren space rock – is an ocean world with reservoirs of sea water beneath its surface, the results of a major exploration mission showed on Monday.Ceres is the largest object in the asteroid belt between Mars and Jupiter, massive enough to be shaped by its gravity, enabling the Nasa Dawn spacecraft to capture high-resolution images of its surface.Now a team of scientists from the United States and Europe have analysed images relayed from the orbiter, captured about 35km (22 miles) from the asteroid.They focused on the 20-million-year-old Occator crater and determined that there is an “extensive reservoir” of brine beneath its surface.Several studies published on Monday in the journals Nature Astronomy, Nature Geoscience and Nature Communications also shed further light on the dwarf planet, which was discovered by the Italian polymath Giuseppe Piazzi in 1801.Using infrared imaging, one team discovered the presence of the compound hydrohalite – a material common in sea ice but which until now had never been observed beyond Earth.Maria Cristina De Sanctis, from Rome’s Istituto Nazionale di Astrofisica said hydrohalite was a clear sign Ceres used to have sea water.“We can now say that Ceres is a sort of ocean world, as are some of Saturn’s and Jupiter’s moons,” she told AFP.The team said the salt deposits looked like they had built up within the last 2 million years – the blink of an eye in space time.This suggests that the brine may still be ascending from the planet’s interior, something De Sanctis said could have profound implications in future studies.“The material found on Ceres is extremely important in terms of astrobiology,” she said.“We know that these minerals are all essential for the emergence of life.”Writing in an accompanying comment article, Julie Castillo-Rogez, from the California Institute of Technology’s Jet Propulsion Laboratory, said the discovery of hydrohalite was a “smoking gun” for ongoing water activity.“That material is unstable on Ceres’ surface, and hence must have been emplaced very recently,” she said.In a separate paper, US-based researchers analysed images of the Occator crater and found that its mounds and hills may have formed when water ejected by the impact of a meteor froze on the surface.The authors said their findings showed that such water freezing processes “extend beyond Earth and Mars, and have been active on Ceres in the geologically recent past”.• This article was amended on 11 August 2020.

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