[听力原文]9-10 Astronomers have detected the most distant explosion ever witnessed in the heavens. It was a flash so powerful that they could observe the faint light as it came in from almost the edge of the known universe. The U. S. space agency’s Swift satellite was routinely scouring...
One possibility is ___.Astronomers at one research station have studied the hot spots and“cold”spots on the sun.As the sun rotates(旋转),it presents hotter or“colder”faces to the earth, and different aspects to different parts of the earth.This seems to have a considerable effect on...
Astronomers at one research station have studied the hot spots and "cold" spots (that is, the relatively less hot spots) on the sun. As the sun rotates, every 27.5 days, it presents hotter or colder faces to the earth, and different aspects to different parts of the earth. This seems ...
5.According to the professor, why do radio astronomers sometimes have difficulty studying very distant objects? [Click on 2 answers.] A. Signals from closer objects interfere with radio waves from space. B. Particles in the atmosphere change the direction of radio waves. C. Radio waves from...
One possibility is ___.Astronomers at one research station have studied the hot spots and“cold”spots on the sun.As the sun rotates(旋转),it presents hotter or“colder”faces to the earth and different aspects to different parts of the earth.This seems to have a considerable effect on...
One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and cold spots(that is,the relatively less hot spots) on the sun. As the sun rotates(旋转),every 27.5 days,it presents hotter or colder faces to the earth,and different aspect...
Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: Which natural cause has the most effect on the weather On possibility is the variable behavior of the sun. Astronomers at one research station have studied the ...
One possibility is the behavior of the sun.Astronomers at one research station have studied the hot spots and “cold” spots, that is, the relatively less hot spots, on the sun.This seems to have a greater effect on the distribution of the earth’s atmospheric pressure, and consequently on...
Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and super clusters of galaxies. They shouldn’t have long to wait. 3)___ 4)___Inflation says that very early on...
Purdue University scientists led a comprehensive analysis of research concerning the effects of microplastics on aquatic life, with the results showing widely different impacts among different types of animals. Strong negative effects were particularly a