A distant star that's a twin to the sun but 2 billion years older may foretell Earth star's future and that of the planet, a team of Brazilian astronomers says. If the sun evolves like its newly discovered relative, dubbed CoRoT Sol 1 -- the farthest of the so-called solar twins in the Milky Way galaxy -- all the water on Earth will boil away, they said. "In 3 billion years' time ... the sun's radiation may increase and make the Earth's surface so hot that liquid water can no longer exist there in its natural state," team leader Jose Dias do Nascimento of the Universidad do Rio Grande do Norte said. CoRoT Sol 1 is considered the sun's twin because of nearly identical mass and chemical composition, the astronomers said. CoRoT Sol 1 is 6.7 billion years old, 2 billion years older than the sun, and its level of radiation is also much more intense than that of the sun, they said. The astronomers used a spectrograph on a telescope in Hawaii to determine the star's age and its rotation period of 29 days, about a day shorter than that of the sun, the Los Angeles Times reported. Astronomers say solar twins are important because one star may be a snapshot of the other's future. The study will be published in Astrophysical Journal Letters.
GMT 17:42 2018 Wednesday ,31 October
Launch of cargo spacecraft Progress MS-10 to ISS set for 16 NovemberGMT 14:18 2018 Saturday ,27 October
First launch of Soyuz-FG booster after Oct 11 incident scheduled on 16 NovGMT 16:58 2018 Monday ,22 October
Report on Soyuz-FG vehicle malfunction to be approved on 30 OctoberGMT 22:05 2018 Friday ,19 October
NASA chief believes human mission to Mars should become international projectGMT 16:31 2018 Monday ,15 October
Roscosmos chief to inform NASA and ESA on probe into Soyuz booster incidentGMT 18:09 2018 Thursday ,11 October
Russia to provide NASA with full information on Soyuz emergency landingGMT 16:09 2018 Thursday ,11 October
President Putin to receive report on aborted Soyuz space launch to ISSGMT 10:49 2018 Friday ,19 January
Amazon narrows list of 'HQ2' candidates to 20Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©
Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©
Send your comments
Your comment as a visitor