'The fuel gauge is broken.' — 'Broken? How do you mean?' “燃油表坏了。”——“坏了?你说清楚点?” 柯林斯高阶英语词典 How come he hasn't been able to be as good this year?... 为什么他今年表现不及往常呢? 柯林斯高阶英语词典 'They don't say a single word to each other.'—'...
How far is 100 astronomical units? How big is an astronomical unit? How long is an astronomical unit in miles? How much larger than the Earth is an astronomical unit? How many kilometers equals one astronomical unit? What is the distance light travels in one year?
Falco plotted the positions of galaxies and galactic clusters in the universe, it became clear that galactic clusters and superclusters are not randomly distributed. They're actually clumped together in walls (long filaments) interspersed with voids, which gives the universe a cobweb-like structure....
The largest known 'object' in the Universe is the Hercules-Corona Borealis Great Wall. This is a 'galactic filament', a vast cluster of galaxies bound together by gravity, and it's estimated to beabout 10 billion light-years across! Will Earth go into a black hole? Will Earth be swallow...
2. My school is on a busy street in Mexico City. There are lots of buses. For a long time, the noise and air pollution from the buses was terrible. Then last year, the city changed from regular to electric buses in this area. They’re much quieter. And the air seems cleaner. ...
The passenger cabin is 12 feet (3.7 m) long and 7.5 feet (2.3 m) wide. Virgin Galactic compares SS2 to a Gulfstream business jet. The SS2 features: A carbon-composite double hull made of carbon sandwich panels with a honeycomb core. The hull enables a fully pressurized cabin so that ...
“How long is the Earth” is a weird question – but what if you cut it up into Minecraft-sized 1-meter cubes and lay them in a line through space, how far would the Earth stretch? It is a thought experiment and in the video published by the astrophysicist (and a famous poker ...
However if the orbit is near the galactic plane, the current Nemesis’s lifetime can be as big as 10 9 years (=-=Hut 1984-=-, Torbett and Smoluchowski 1984, Vandervoort and Sather 1993). This lifetime is not long enough for Nemesis to have been in such a large orbit at the ...
From 2007 to to 2018, there were 95 reports of meteorites falling to Earth, averaging a rate of about 7.9 reports per year. Related mysteries — What human-made structures can be seen from space? — How long do stars live? — Is Earth getting closer to the sun, or farther away? It...
The fast radio burst came from a galaxy in the throes of a very messy galactic merger. In fact, the merger is so messy and so distant that Ryder can’t be sure whether it’s actually two colliding galaxies or three. Because this is the most distant fast radio burst ever detected,that...