quasars find large water as megabytes of the earth

quasars find large water as megabytes of the earth

water is everywhere.in order to study the water in the universe, twoastronomers of the california institute of technology worked hard on the samequasar, and on the distant quasars they found a super-large reservoir.quasarsare the brightest and most active
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if the sun suddenly disappeared, we only minutes?

if the sun suddenly disappeared, we only minutes?

if one day, the sun suddenly disappeared, the earth will change what? if onlythe light problem, a good answer, 8 minutes only(light from the sun to earthtime), but the sun disappears the seemingly stupid question is actually animportant question considere
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today frost

today frost

today's frostfirst frost![](http://p3.pstatp.com/large/3197000b95bc7be34f63)frost, one of twenty-four solar terms, frosty throttle contains the weathergetting cold, the beginning of the meaning of the beginning of the fall is thelast section of the solar
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where is the difficulty of manned landing on mars?

where is the difficulty of manned landing on mars?

in recent years, manned space to send people to visit more popular is the moonand mars.relative to the distant mars, the moon has long appeared in the humanfigure, the relative research is also more, so why there is no human landingon mars, where the diff
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earth is known as a super large species of the body

earth is known as a super large species of the body

1, the largest fish-leeds fishleeds fish live in the jurassic period of the ocean.this fish was discovered in the 19th century because the bones were notperfect at the time and were initially mistaken for some kind of greatdinosaurs.to this day, has been
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hell the door has been confirmed?

hell the door has been confirmed?

a scientific research conducted by the former soviet union in 1970, scientificdrilling in the kola peninsula, began in 1970 and ended in 1994.in 1983, thedrilling depth of the well has reached 12,000 meters, and the drilling depthof the well has reached 1
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how long does it take to go to mars?

how long does it take to go to mars?

in 2003, mars was closest to earth in the past 60,000 years.hubble space telescope takes advantage of the opportunity to observe the redplanet, only 34,647,420 miles(55,757,930 km) from the earth.how long does it take if you want to visit red planet? let'
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