- Can we see the past in space?
- What do stars look like from the moon?
- What is the deepest part of space?
- Do astronauts see stars in space?
- Why is it dark in outer space?
- Can Hubble see the moon?
- Why do stars twinkle?
- What are the 7 types of stars?
- Does the universe ever end?
- Why can’t astronauts cry in space?
- What does space smell like?
- Why doesnt the sun shine in space?
- What would happen if you floated away in space?
- Who has died in space?
- What do stars look like to astronauts?
- Can astronauts fart in space?
- How far away can we see in space?
- What’s the farthest we have seen in space?
- Why arent stars visible in space?
- Is Hubble still in space?
- Are there any dead astronauts in space?
- How do you poop in space?
- Do we see stars in real time?
- Can astronauts have tattoos?
- Can you breathe in space?
- Can you get pregnant in space?
- Does a fart smell in space?
Can we see the past in space?
That’s 1 followed by 13 zeros.
The Hubble Space Telescope can see objects even more distant than your eyes can.
When it takes a picture of a galaxy 100 million light years away, we are seeing the galaxy as it looked 100 million years ago..
What do stars look like from the moon?
Seen from the moon, stars will appear much brighter than they do from the Earth’s surface, and they will not twinkle. … Even in shadow, where the sun is not directly visible, the light reflecting from the lunar surface will prevent stars from being seen.
What is the deepest part of space?
HUDFThe HUDF is the deepest image of the universe ever taken and has been used to search for galaxies that existed between 400 and 800 million years after the Big Bang (redshifts between 7 and 12).
Do astronauts see stars in space?
Credit: NASA/Jack Fischer. I’ve often been asked the question, “Can the astronauts on the Space Station see the stars?” Astronaut Jack Fischer provides an unequivocal answer of “yes!” with a recent post on Twitter of a timelapse he took from the ISS.
Why is it dark in outer space?
The daytime sky is blue because light from the nearby Sun hits molecules in the Earth’s atmosphere and scatters off in all directions. … At night, when that part of Earth is facing away from the Sun, space looks black because there is no nearby bright source of light, like the Sun, to be scattered.
Can Hubble see the moon?
The Hubble telescope is known for its views of faraway galaxies, distant planets, dying stars, and black holes. … Since ultraviolet light is blocked by gases in the Earth’s atmosphere, ground-based telescopes can’t use it to observe the lunar surface.
Why do stars twinkle?
As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the bending of the light changes too, which causes the star’s appearance to wobble or twinkle.
What are the 7 types of stars?
Stars are classified by their spectra (the elements that they absorb) and their temperature. There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M. O and B stars are uncommon but very bright; M stars are common but dim..
Does the universe ever end?
As the energy density, scale factor and expansion rate become infinite the universe ends as what is effectively a singularity.
Why can’t astronauts cry in space?
Astronauts can’t cry the same in space as they do on Earth. Your eyes make tears but they stick as a liquid ball. … So — space tears don’t shed.” Unless an astronaut wipes that water away, tears in space can form a giant clump that can break free of your eye, as The Atlantic explained.
What does space smell like?
As it turns out, space actually does have a distinct odor. … Astronauts returning from space claim that their suits smell, in a word, burnt. The lingering scent of space is “acrid” and “metallic,” reminding the astronauts of charred meat or welding fumes.
Why doesnt the sun shine in space?
Space is dark because there is no atmosphere to scatter the sunlight. … As there is nothing else in space to shine, hence we never see the Sun’s light.
What would happen if you floated away in space?
The astronaut would probably end up trapped in orbit around the Earth, far away from the International Space Station, until their oxygen supply ran out, or until the space suit gets a tear in it from space junk.
Who has died in space?
Cosmonauts Georgi Dobrovolski (left), Vladislav Volkov (middle), and Viktor Patsayev (right), the only three people to die in space, are featured on three USSR stamps. On June 29, the cosmonauts loaded back into the Soyuz 11 spacecraft and began their descent to Earth. And that’s when tragedy struck.
What do stars look like to astronauts?
Apollo astronauts reported they could see the brighter stars if they stood in the shadow of the Lunar Module, and also they saw stars while orbiting the far side of the Moon. … Just like stargazers on Earth need dark skies to see stars, so too when you’re in space.
Can astronauts fart in space?
On Earth, farts are typically no big deal — smelly, harmless, and they quickly dissipate. But if you’re an astronaut, every fart is a ticking time bomb. The gases in farts are flammable, which can quickly become a problem in a tiny pressurized capsule in the middle of space where your fart gases have no where to go.
How far away can we see in space?
30 billion light-years awayToday, the most distant objects we can see are more than 30 billion light-years away, despite the fact that only 13.8 billion years have passed since the Big Bang. The farther a galaxy is, the faster it expands away from us and the more its light appears…
What’s the farthest we have seen in space?
MACS0647-JD is the farthest known galaxy from the Earth based on the photometric redshift. It has a redshift of about z = 10.7, equivalent to a light travel distance of 13.26 billion light-years (4 billion parsecs).
Why arent stars visible in space?
Naturally, the astronauts or satellites in space are going to do the same thing when taking pictures of sunlit objects, since it’s just as bright up there. … Even in space, stars are relatively dim, and simply don’t produce enough light to show up in photos set for bright sunlight.
Is Hubble still in space?
Hubble is the only telescope designed to be maintained in space by astronauts. … The telescope was still operating as of April 24, 2020, its 30th anniversary, and could last until 2030–2040. One successor to the Hubble telescope is the James Webb Space Telescope (JWST) which is scheduled to be launched in late 2021.
Are there any dead astronauts in space?
As of 2020, there have been 15 astronaut and 4 cosmonaut fatalities during spaceflight. Astronauts have also died while training for space missions, such as the Apollo 1 launch pad fire which killed an entire crew of three. There have also been some non-astronaut fatalities during spaceflight-related activities.
How do you poop in space?
Tthe poop is sealed inside a plastic bag and hauled off the next space trash day, Whitson said. When it’s too full, astronauts must “put a rubber glove on and pack it down.” That’s what happens when the ISS toilet is working. When it malfunctions, astronauts will occasionally have to deal with floating poop.
Do we see stars in real time?
However, there is no way for us to know the present state of a star or for the present state of a star to affect us in any way. Therefore, even if a star that we see in the sky does not really exist anymore, this fact means nothing to us at the current moment.
Can astronauts have tattoos?
There are no restrictions on astronauts having tattoos.
Can you breathe in space?
But inside the International Space Station (ISS), the American astronauts and Russian cosmonauts do breathe air almost identical to the stuff we breathe down here on planet Earth – same pressure and about 80 per cent nitrogen and 20 per cent oxygen. … It turns out they get it by ‘splitting’ H2O with electricity.
Can you get pregnant in space?
As a result NASA’s official policy forbids pregnancy in space. Female astronauts are tested regularly in the 10 days prior to launch. And sex in space is very much frowned upon.
Does a fart smell in space?
Therefore, the fart will not be smelled by the astronaut, although they may marinate in it for a time. When astronauts are not in the space suit and floating about, the fart smell is exaggerated by the lack of airflow from the recycled air used and its inability to mask any smell.