How did astronomers discover that there is such a thing as the perihelion and aphelion? Did they realize the sun was bigger or smaller during certain periods of the year? The answer is no. Edward Bloomer, an astronomer at the Royal Observatory in Greenwich, England, explains that this discove...
When I lived for a time in London, I had a friend.He was in despair(失望)and 1 was in despair.But our friendship was based on the idea in each of us that we would be sorry later if we did not explore this great city because we had felt bad at the time.We met every Sunday fo...
“We’ve identified a star-orbiting hot Jupiter-like object that is the hottest ever found, about 2,000 degrees hotter than the surface of the Sun,” says lead author of the study Dr. Na’ama Hallakoun, a postdoctoral fellow associated with Dr. Sagi Ben-Ami’s team in the Particle Phy...
Not the white bullJupiter swimming away with ravished Europe clinging to his graceful horns; hislovely, leering eyes sideways intent upon the maid; with smooth bewitchingfleetness, rippling straight for the nuptial bower in Crete; not Jove, not thatgreat majesty Supreme did surpass the glorified ...
Tens of thousands of asteroids have since been discovered,with thousands more found each year.Asteroids are masses of rock and metal that orbit(绕轨道而行)the sun between Mars and Jupiter.They did not form into planets because the perturbations of Jupiter kept them moving too fast to join toge...
But that did not really surprise me much. 这并没有让我太惊讶。 I knew very well that in addition to the great planets, such as the Earth, Jupiter, Mars, Venus, to which we have given names, there are also hundreds of others, some of which are so small that one has a hard time ...
Explore supermoons in more detailwith NASA. Discover the supermoon cycle and why the moon can look so big with theNatural History Museum. Find out more about when supermoons occur withTimeandDate.com. Bibliography NASA. (2021, July 28). What is a supermoon? –NASA solar system exploration...
Kepler lived a fruitful life by any metric, but it hasn’t been an easy one. Too far into deep space for us to repair it as we did Hubble, hardware failures aboard the observatory nearly brought the program to a halt in 2013. When NASA announced the spacecraft was beyond hope of repa...
"Earth Day is an opportunity to have a conversation about what we need to do. Truth be told, every day should be Earth Day. Without a livable planet, we have nothing." Related: How do we turn oil into plastic? When did Earth Day begin? Nelson started Earth Day after seeing the ...
FEMALE STUDENT: So, uh—exactly why are we interested in these exoplanets, anyway?Is it to see if there's life on them? 'Cause it seems to me like the only exoplanets we ever hear about are gas giants, like Jupiter and Saturn, that couldn’t possibly support carbon-based life…. ...