red dwarf stars are extremely violent in their youth. They blast out enormous solar flares and coronal mass ejections. These would scour the surface of any planets caught orbiting them close enough for liquid water to be present.
根据第一段“With the fast development of astronomy, astronomers are eager to find a hint of the familiar: planets that resemble Earth. By pushing technology to the limits, astronomers ar idly approaching the day when they can find another Earth.(随着天文学的快速发展,天文学家们渴望找到一个熟悉...
2017 cover storyon super-Earths. Super-Earths are planets larger than Earth but smaller than Uranus and Neptune. There’s nothing like them in the solar system (as far as we know), yetthey’re the most common type of planet discovered by NASA’s Kepler mission. Could they be habitable?
For now, the focus is on locating planets within a host star's so called "habitable zone", a zone that's a certain distance from its star ,because only planets within this zone could conceivably support carbon-based life. 现在,研究的核心是在寄主星所谓的“可居住区”内寻找行星,它通常距离它...
discovered planets are in seven planets like the earth.the so-called habitable zone(适居带). This is the are a around the B. It's the largest habitable zone humans parent star where a rocky planet is most likely to have liquid wa-have found outside the earth.ter, and possibly life. ...
A planet that stably orbits its star inside the habitable zone will have a temperature range that can support life and ensure that water can exist in a liquid state. The importance of water has often been emphasized when it comes to life on other planets. Water is an essential ingredient fo...
BecauseEarth receives a hearty portion of the sun’s rays(just 1 astronomical unit away), it can sustain liquid water and life. Even here in ourMilky Way galaxy, at least 10 possible habitable planets are within the Goldilocks zone. This means that only light-years away, there is a glimme...
The Dawn of Chloroplasts Photosynthesis: The Key to Life "A great way to appreciate photosynthesis is to compare Earth's atmosphere with that of our 'sister' planets," says Gregory Schmidt, professor emeritus in the Department of Plant Biology at the University of Georgia. "All three planets...
let's take it as a given that humanity has the futuristic tech needed to set up a base on the planets. So join Space.com each week as we skip across the solar system and see what it would feel like to live beyond Earth. Check out our schedule for the tour through the solar system...
Earth is estimated to have formed 4.54 billion years ago from the solar nebula, along with the Sun and other planets.[10] The moon formed roughly 20 million years later. Initially molten, the outer layer of the planet cooled, resulting in the solid crust. Outgassing and volcanic activity pro...