时间:2024-09-20 10:50:02 来源:网络整理编辑:焦點
Eleven light-years away, an Earth-sized world orbits a cool, red star, and it may be just right for
Eleven light-years away, an Earth-sized world orbits a cool, red star, and it may be just right for life.
The planet, known as Ross 128b, completes an orbit of its star, Ross 128, about once every 10 days, according to new research published in the journal Astronomy & Astrophysics.
While a 10-day orbit might bake a world around a sun-like star, Ross 128 isn't at all like the sun.
SEE ALSO:Seven Earth-sized planets orbit an alien star only 40 light-years awayThe relatively nearby red dwarf star is small and cool, so Ross 128b's 10-day orbit could actually make it ideal for life to develop.
On top of that, Ross 128 is thought to be a pretty quiet star, meaning that it doesn't shoot off powerful atmosphere-stripping flares very often, making Ross 128b an even better prospect for life.
That said, it's still not exactly clear if Ross 128b is habitable.
"While the scientists involved in this discovery consider Ross 128b to be a temperate planet, uncertainty remains as to whether the planet lies inside, outside, or on the cusp of the habitable zone, where liquid water may exist on a planet’s surface," the European Southern Observatory (ESO) said in a statement announcing the discovery.
Ross 128's quiet nature makes it special.
This image shows the sky around the red dwarf star Ross 128 in the constellation of Virgo (The Virgin).Credit: Digitized Sky Survey 2. AcknowleProxima Centauri, which is also a red dwarf 4 light-years from Earth that plays host to its own Earth-sized world, might be a bit too active to allow life to develop nearby over the course of billions of years. But it seems that Ross 128 may not have that problem.
Plus, astronomers of the future may have the chance to study Ross 128 and its possibly habitable planet from very close range.
Right now, the star is speeding toward Earth's part of space. According to the ESO, in about 79,000 years, the object will become the second-closest star from Earth (after the sun), moving closer than Proxima Centauri.
This artist’s impression shows the temperate planet Ross 128b, with its red dwarf parent star in the background.Credit: ESO/M. KornmesserDuring the coming decades, scientists hope to use powerful tools to peer deeply into the atmospheres of planets outside our solar system in order to see exactly which worlds may or may not be habitable.
The ESO's Extremely Large Telescope, for example, will be able to look for chemicals in the atmosphere of other planets that could be indicators of life, according to the organization, and NASA's James Webb Space Telescope, slated for launch in 2019, will also have the ability to parse out the compositions of alien atmospheres.
Dressage horse dancing to 'Smooth' by Santana wins gold for chillest horse2024-09-20 10:37
9球大勝伯恩茅斯 利物浦追平英超曆史單場最大分差2024-09-20 10:00
C羅同意免費加盟那不勒斯,曼聯全額支付其工資2024-09-20 09:33
羅梅羅:德斯特願意離隊,但目前巴薩尚未收到任何報價2024-09-20 09:02
Tyler, the Creator helped Frank Ocean celebrate 'Blonde' release in a delicious way2024-09-20 08:59
皇馬清洗4000萬攻擊手,5000萬鋒霸就位,皇馬陣容升級2024-09-20 08:36
最後一簽即將敲定?國米輸球後緊急開會 ,馬總意中人5戰6球2助攻2024-09-20 08:32
安切洛蒂觀看皇馬二隊比賽 !無懼阿森西奧離隊,兩大替身浮出水麵2024-09-20 08:27
Pole vaulter claims his penis is not to blame2024-09-20 08:13
《藍喬匯》 :車迷遭斯特林“打臉”!凱指導&加寶上演摸頭殺2024-09-20 08:08
Make money or go to Stanford? Katie Ledecky is left with an unfair choice.2024-09-20 10:43
凱恩打入生涯第200粒聯賽進球,英超186球+英冠9球+英甲5球2024-09-20 10:03
馬卡報 :皇馬高層和安切洛蒂都認為阿紮爾已很難重回巔峰2024-09-20 10:02
英超豪門夜!13冠王創曆史+領跑,利物浦首勝,曼聯 、曼城止雪崩2024-09-20 09:50
Slack goes down again, prompting anxiety everywhere2024-09-20 09:45
意甲第3輪前瞻:佛羅倫薩VS那不勒斯 ,紫百合能否終結連勝?2024-09-20 09:15
高效射手成“藍月亮”新希望 !哈蘭德“帽子戲法”助曼城逆轉獲勝2024-09-20 09:07
迪馬濟奧:切爾西中衛阿姆帕杜周二接受斯佩齊亞體檢2024-09-20 08:57
Katy Perry talks 'Rise,' her next batch of songs, and how to survive Twitter2024-09-20 08:40
媒體人:今年中超冠軍三鎮泰山2選1 海港或是第3名2024-09-20 08:12