您现在的位置是:熱點 >>正文
【】
熱點3人已围观
简介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.
Featured Video For You
The Earth is surrounded by human-made bubble
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://www.new.maomao321.com/news/85c54799367.html
相关文章
Darth Vader is back. Why do we still care?
熱點They saved the best for last in the first official trailer for Rogue One: A Star Wars Story, release ...
【熱點】
阅读更多What is attachment theory and how does it impact sex and relationships?
熱點Are you secure, anxious, avoidant, or fearful? If you've no idea what I'm talking about, welcome. If ...
【熱點】
阅读更多A Marine who worked on 'Six Days in Fallujah' explains why it exists
熱點There's no easy way to talk about Six Days in Fallujah.That was clear in 2009 when Konami revealed t ...
【熱點】
阅读更多
热门文章
- Major earthquake and multiple aftershocks rock central Italy
- Startup shows off electric car batteries that charge in 5 minutes
- 11 of the most expensive sex toys
- Chadwick Boseman's wife Taylor Simone Ledward gives moving Golden Globes speech
- Watch MTV's Video Music Awards 2016 livestream
- A Marine who worked on 'Six Days in Fallujah' explains why it exists
最新文章
Watch MTV's Video Music Awards 2016 livestream
Step aside, Queen Bey has arrived – on your Peloton app
Apple Maps will soon let you report accidents and speed traps
'Blithe Spirit' is a bit of forgettable fun for a drab, drizzly evening
Two states took big steps this week to get rid of the tampon tax
Netflix's 'Sir' is essential Indian cinema