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Supernovae are the explosions of stars that have reached the ends of their lifetimes. Temperatures in the ... . We observe dozens of them every year, mostly in other galaxies. A famous supernova, referred to as Supernova 1987A, occurred in a satellite galaxy of the Milky Way in 1987 and astronomers ...

Many astronomers are working on this question. Right now we can only find really big planets, like Jupiter. ... years, should be able to detect planets the size of the Earth. Identifying if they are habitable may take a few more years, though. ---- Answer provided by Jim Zebrowski Image:K2S ...

The risks and dangers are many and not to be ignored. However, I did a risk analysis and decided that ...

... a few others. In order to survive in extreme environments, we need to understand what those environments are like before we go there. For space exploration, this may mean sending robots before ... 've done with orbital flights and missions to the Moon and Mars. Once we know what conditions to expect, we can develop technologies to protect us when we go there. For ...

... to determine the types of hazards that exist. Many of the risks faced on Earth are also faced in space. Depending upon a person's job and work environment, they may face hazards similar to those in a space environment. However, there are some particular challenges that are unique to space: a lack of breathable air in the space environment, travel ...

... failures. The day also offers an opportunity to reflect on what we have seen, what we have accomplished, and the significance of what we have done and how those successes will influence the ... software from on orbit support to re-entry, and verify that the computers are ready and that there are no funny things that could cause a problem. The crew has practiced each ...

... to make discoveries in the sciences, medicine, technology, and maybe about our individual selves. People are curious. The Universe around us is now opening up to us because of rocket technology ...

That depends on where you are headed. Earth's orbit? The Moon? Mars or beyond? But no matter what your flight plan, the primary attractions will be an unmatched view of the ...

... upper half of the body—an astronaut appears to have a puffy, swollen face. What is really happening is that the body does not need as much blood in space ... is not pulling the blood down to our feet. Some of the blood water is what makes the face swell; however, most of the extra blood not needed is eliminated from ... blood in the blood vessels and some people will faint on standing up, because they are not getting enough blood to supply oxygen and nutrients to the brain. ---- Answer provided by ...

... spacesuit is made by sewing and cementing eleven different layers of materials together. Metal parts are then attached to join the different components together. Suit materials include: ortho-fabric, aluminized mylar ...

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