- What happens when astronauts fart in space?
- Are older stars hotter?
- What is a white star?
- How many visible galaxies are there?
- What is the youngest star in the Milky Way?
- How cold is space?
- How many dead bodies are in space?
- What is the hottest star color?
- Where are the newest or youngest stars in the Milky Way galaxy?
- Which type of stars are the youngest?
- What color is the oldest star?
- What is the hottest thing in the universe?
- How does a star die?
- Which Star produces the most energy?
- How old is the youngest galaxy?
- Where are the youngest stars found?
- What’s the coldest thing in the universe?
- What does space smell like?
- What are the oldest stars?
- What is the oldest thing in the universe?
- Do galaxies die?
What happens when 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..
Are older stars hotter?
Stars emit colors of many different wavelengths, but the wavelength of light where a star’s emission is concentrated is related to the star’s temperature – the hotter the star, the more blue it is; the cooler the star, the more red it is. … So that is one way in which older stars are redder than young stars.
What is a white star?
1 : a star of spectral type A or F having a moderate surface temperature and a white or yellowish color. 2a : an annual morning glory (Ipomoea lacunosa) of the southern U.S. with star-shaped leaves and small white or purplish flowers.
How many visible galaxies are there?
Research released in 2016 revised the number of galaxies in the observable universe from a previous estimate of 200 billion (2×1011) to a suggested two trillion (2×1012) or more and, overall, as many as an estimated 1×1024 stars (more stars than all the grains of sand on planet Earth).
What is the youngest star in the Milky Way?
A team of astronomers has confirmed that the supernova remnant Kes 75, located about 19,000 light years from Earth, contains the youngest known pulsar in the Milky Way galaxy. , seen as the blue region surrounding the pulsar.
How cold is space?
Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit).
How many dead bodies are in space?
However, of the roughly 550 people who have so far ventured into space, only three have actually died there.
What is the hottest star color?
Blue starsWhite stars are hotter than red and yellow. Blue stars are the hottest stars of all.
Where are the newest or youngest stars in the Milky Way galaxy?
Collisions and mergers between galaxies create new stars. And astronomers have now found a young star cluster on the outskirts of our Milky Way galaxy, near the Magellanic Stream, in a part of space inhabited by our galaxy’s oldest stars.
Which type of stars are the youngest?
Yellow dwarfs are small, main sequence stars. The Sun is a yellow dwarf. A red dwarf is a small, cool, very faint, main sequence star whose surface temperature is under about 4,000 K. Red dwarfs are the most common type of star….TYPEStarVIIWhite Dwarf7 more rows
What color is the oldest star?
redAs stars age, they run out of hydrogen to burn, decreasing the amount of energy they emit. Thus, younger stars can appear bluer while older ones appear more red, and in this way, a star’s color can tell us something about that star’s age.
What is the hottest thing in the universe?
A CERN experiment at the Large Hadron Collider created the highest recorded temperature ever when it reached 9.9 trillion degrees Fahrenheit. The experiment was meant to make a primordial goop called a quark–gluon plasma behave like a frictionless fluid. That’s more than 366,000 times hotter than the center of the Sun.
How does a star die?
Most stars take millions of years to die. When a star like the Sun has burned all of its hydrogen fuel, it expands to become a red giant. After puffing off its outer layers, the star collapses to form a very dense white dwarf. …
Which Star produces the most energy?
There is another star called the Pistol Star. It is in our neighborhood, the Milky Way galaxy. Although the sun is extremely powerful, this star is even much more so. It produces 10 million times more energy than the sun and gives off as much energy in six seconds as the sun does in an entire year.
How old is the youngest galaxy?
Dubbed Abell2744_Y1, the galaxy is so far away that it takes about 13 billion years for light from the galaxy to reach our neighborhood. That means it appears as it was just 650 million years after the Big Bang, scientists say. The universe is estimated to be about 13.8 billion years old.
Where are the youngest stars found?
These are the youngest stars found in the Milky Way’s bulge, outside of the nuclear star cluster surrounding the supermassive black hole. Interestingly, these Cepheids live in only a restricted region of the sky.
What’s the coldest thing in the universe?
Boomerang nebulaHowever, the coldest natural spot in the Universe currently is the Boomerang nebula, which resides 5,000 light-years away from us. Its temperature is measured to be 1 Kelvin or -272.15 degrees Celsius.
What does space smell like?
Astronaut Thomas Jones said it “carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous.” Tony Antonelli, another space-walker, said space “definitely has a smell that’s different than anything else.” A gentleman named Don Pettit was a bit more verbose on the topic: “Each time, when I …
What are the oldest stars?
Methuselah starThis Digitized Sky Survey image shows the oldest star with a well-determined age in our galaxy. Called the Methuselah star, HD 140283 is 190.1 light-years away. Astronomers refined the star’s age to about 14.3 billion years (which is older than the universe), plus or minus 800 million years.
What is the oldest thing in the universe?
The search for extremely distant galaxies continues today. Astronomers have confirmed the discovery of one the oldest and most distant objects ever known in the universe — a star-forming galaxy 12.8 billion light-years away that started forming within a billion years of the Big Bang that kickstarted everything.
Do galaxies die?
Eventually, the galaxy will empty itself of the material for making new stars. This is how all galaxies die — at least, according to the theories. But until now, no one has captured a galaxy in its transition phase, after the formation of a quasar but before it has lost all its stellar building blocks.