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As far as we know, there is no matter that is truly invisible. Some objects can be extremely hard to see, however, because they are black and tend to blend in with the black space behind them. Black holes and dark matter are two such things, and we only know they exist by observing their effects on the things around them. Both have significant gravitational effects, and it is from these that we learn about them. Imagine if you were walking down a hallway and bumped into something you couldn't see. Even if we couldn't observe anything about it directly, we can make pretty accurate guesses about it based on how it interacts with you, something we can measure. There may very well be invisible things we don't know about out there, but unless they interact with something we can see, we'll never know that they are there.
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∙ 12y ago
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∙ 15y agousing space scope or getting in to outer space via a ship!!
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A device used to detect radio waves from objects in the space?
A radio telescope
Do astronauts sleep in space?
Yes, they do.
How do astronauts get oxygen into space?
They carry it with them on board.
What are some tools that astronauts use to explore space?
astronauts need a space shuttle too travel to space, they use MMU's ( Man Maneuvering Unit ) to walk around space, MMU's are chairs that astronauts attach to them to control their movements because space has no air so we can't move
What is meant by a celestial globe?
The Celestial Globe (or sphere) is an imaginary sphere around our planet, earth. All objects in the sky and space, such as satellites, can be thought inside this invisible sphere.
How do astronauts describe the position of objects in space?
Weightlessness.
Is there really invisible walls in outer space?
No. Are there undetectable walls in outer space? Possibly. We can't detect them.
What are the equipments astronauts use in space?
astronauts use: space suits invisible braces edible toothpaste athletic shoes baby food mashed up food powdered drinks
What can detect radio waves from objects in space?
A radio telescope.
How are radio waves used to detect objects in space?
radar
A device used to detect radio waves from objects in the space?
A radio telescope
What is a device used to detect radio waves from objects in space?
Radio Telescope
Why is the canadarm a valuable tool?
It allows the astronauts of the Space Shuttle to manipulate large objects in and outside the cargo bay.
How do scientist study invisible radiation from objects in space?
They study visible light by using optical telescopes.
What types of astronauts are there on a space mission?
trained space astronauts
Astronauts are--who fly in space?
Astronauts are people who fly in space
What do small objects in space have in common?
Small objects that we can detect in space are all in the solar system and they all orbit the Sun and obey Kepler's laws of planetary motion, as do all the planets, asteroids etc.
