Recently, a new planet was discovered, which is about 31 light years away. Scientists haven't seen it in fact, but they've been able to calculate(计算) its size and weight by watching how it influences its stars. It appears that this planet is mainly made of iron(铁).“From our calc...
as,"三倍"的英语是three times,"大"的英语是large,"三倍大"译为three times as large as,故填three times as large as .相关推荐 1The new planet discovered recently is almost___ (三倍大) Earth, and hopefully it can support human life.反馈 收藏 ...
This artist’s impression shows Proxima d, a planet candidate recently found orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. The planet is believed to be rocky and to have a mass about a quarter that of Earth. Two other planets known to orbit Proxima Ce...
Nicknamed Gaia by the NASA-led research team, the new planet is among a recently discovered class of objects known as Arjunas. "An Arjuna is a body in a very earth-like orbit," said NASA astonomer Gorman Thomas. "They are analagous to Jupiter's trojan asteroids, sharing Earht's orbit ...
At just a quarter of the mass of Earth, Proxima d is the lightest exoplanet ever measured using the radial velocity technique, surpassing a planet recently discovered in the L 98-59 planetary system. The technique works by picking up tiny wobbles in the motion of a star created by an orbi...
1It is reported that a new planet has been discovered recently. It's ___ Earth, and hopefully it can support human life. [ ]A. almost three times the size of B. three times the size than C. three times almost as large as D. almost three times as larger as 2A new planet has ...
It is reported that a new planet has been discovered recently. It is ___ Earth, and hopefully it can support human life.A:almost three times the size ofB:three times the size thanC:three times almost as large asD:almost three times as larger as 相关知识点: 试题来源: 解析 A 本题...
“It’s a useful planet because it may be like an early Earth” HD 63433d, a new Earth-sized planet discovered by astronomers, offers a rare glimpse into the early stages of planet evolution, given its close orbit around a young sun-like star. ...
Esmé E. Deprez
In this illustration, the planet orbits its two stars. FROM LEFT: COURTESY BEN CUKIER; CHRIS SMITH—NASA'S GODDARD SPACE FLIGHT CENTER NASA recently announced a new planet. It was discovered by 17-year-old Wolf Cukier during his summer internship at NASA’s Goddard Space Flight Center, in...