Monday, March 15, 2010

RRJ#5 Tons of Water Ice Found on the Moon's North Pole.

¤ Reference

Malik, T. (2010, March 1). Tons of Water Ice Found on the Moon’s North Pole. Yahoo News (Space&Astronomy). Retrieved on March 3, 2010. From
http://news.yahoo.com/s/space/2010030/sc_space/tonsofwatericefoundonthemoonsnorthpole


¤ Summary

NASA announced on Monday that a NASA radar instrument found evidence of more than 600million metric tons of water ice at the lunar north pole. Even though it was not to find another supply of lunar water ice, it might be a good resource such as Oxygen for breath and fuel for rocket. Jason Crusan, program executive for the Mini-RF program for NASA’s space operations in Washington D.C., said “After analyzing the data, our science team determined a strong indication of water ice, a finding which will give future missions a new target to further explore and exploit.” Last September, NASA found evidence of water ice at the south pole of the moon. In October, NASA found water vapor in the moon’s debris cloud. NASA had a plan, the Constellation program, to send astronauts to moon. But they had a problem that last month; President Barack Obama told NASA to cancel this program. So, NASA should use commercial spacecraft when astronauts go to the moon and return to the earth. Charles Bolden said “Mars is expected to be the ultimate destination for astronauts. But the moon is still a good interim target.

¤ Reaction

NASA discovered evidence of water ice at the North Pole. Water is very important for living things; especially humans cannot live without water. People want to find aliens who live on another planet in the Universe and useful resources that can use in the earth. For these reasons, people make many stories about alien or space. Anyway, if some planets have water, the possibility of existence of a living thing and of resources that humans need is high. So, I believe NASA or other astronomers should continue to study the moon. Before, I thought humans already defeated the moon, because the first launching to the moon was in 1969. But people still don’t know exactly about the moon and of course other planets. Actually I don’t know exactly why President Barack Obama canceled the Constellation program that had the program of studying the moon. But NASA or other astronomers should continue to study the moon, because the moon is the closest planet from the earth. So, going to the moon and studying the moon are easier than other planets. And the moon has potential of development.

Monday, March 1, 2010

RRJ#4, From the Clash of White Dwarfs, the Birth of a supernova

¤ Reference

Overbye, D. (2010, February 22). From the Clash of White Dwarfs, the Birth of a Supernova. The New York Times (Space&Cosmos). Retrieved on February 24, 2010. From http://www.nytimes.com/2010/02/23/science/space/23star.html?ref=space

¤ Summary

Astronomers have been searching for a star which exploded a special way for the last 20 years. When the number of white dwarfs grows up, they set off a thermonuclear cataclysm that is bright enough to show across the universe and that makes uniform from one supernova to the next supernova. A decade ago, astronomers found that dark energy was quickly expanding in the universe. But astronomers did not agree about how the white dwarfs gain their weight and explode. Marat Gilfanov and Akos Bogdan, of the Max Planck Institute for Astrophysics in Garching, said that supernovas are mostly produced by crash. They showed the source of important exploding, but they stil don’t know exactly. Mario Livio, a theorist at the Space Telescope Science Institute, said “The main results so far will remain unchanged.” The new results and the idea would not influence the measurements of dark energy. But “if we find a connection to where nature does it one way versus the other, we could use that information. And we are getting close to that point now,” Adam Riess, Johns Hopkins University and the Space Telescope Science Institute and a first-rate dark energy hunter, said.

¤ Reaction

The universe has a lot of stars which sometime explode and crash. People don’t know how many stars are in the universe; people don’t even know where the end of the universe is. When a white dwarf explodes, it makes a lot of energy. So this light can shine across the universe. The universe has unlimited potentiality to find our need. Marat Gilfanov and Akos Bogdan said they didn’t know exactly what they were. That is interesting to me, because I believe they have studied this for a long time and they might be experts in studying the universe. But they don’t know exactly what is going on. I’m also interested in a planet’s moving; it sometimes has a cycle and sometimes not, because a planet’s size is various; some planets are small but some planets are really big. They are moving, whatever their size and whatever their speed fast or slow. So, I’m curious about what the source of a planet’s moving is and about how the star is born or dies. Astronomers don’t yet know exactly about a star’s explosion in cosmology. But Adam Riess has a positive prospect in discovering explosion of a star.