Among the stunning variety of worlds in our solar system, only Earth is known to host life.
Can living things survive on other planets?
Living beings need the atmosphere to be of a specific composition, with oxygen to breathe and live, the atmosphere and the plants provide them with this gas. The temperature of the planet matters a lot too, living beings would cease to exist if the temperature on the planet was too high or too low for them to handle.
Is Earth the only planet with life?
Earth is the only planet in the universe known to possess life. The planet boasts several million described species, living in habitats ranging from the bottom of the deepest ocean to a few miles up into the atmosphere.
Are there living things in other galaxies?
Generally, they conclude, life is possible only in the outer regions of large galaxies. (Our own solar system is about 27,000 light-years from the center.) Things are even bleaker in other galaxies, the researchers report. Compared with the Milky Way, most galaxies are small and low in metallicity.
Does any planet have living things? – Related Questions
What planet could we live on?
Then, just last year, scientists discovered another Earth-like planet orbiting one of our closest neighboring stars, Proxima Centauri. Currently, this planet is the best candidate we have for supporting human life.
What is beyond the universe?
The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.
What is inside other galaxies?
Galaxies are sprawling systems of dust, gas, dark matter, and anywhere from a million to a trillion stars that are held together by gravity. Nearly all large galaxies are thought to also contain supermassive black holes at their centers.
Is there any living thing in Mars?
To date, no proof of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms, but habitable conditions do not necessarily indicate life.
Can there be life in other galaxies give reason for your answer?
Existence of life on an other galaxy cannot be possible as the most common species the animals and the humans, need food and water to survive, which is difficult on any other planet or galaxy.
Does other galaxies have sun?
So we approximate that galaxies are made of stars that orbit a central point, which has an analogy to the Solar System, but that’s as far as it goes. There’s no Sun that everything orbits; there’s a black hole, but nothing directly orbits it except nearby stars.
Are we at the center of the universe?
According to all current observations, there is no center to the universe. For a center point to exist, that point would have to somehow be special with respect to the universe as a whole.
How many universes are there?
In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.
How far does space go?
Yet the edge of space – or the point where we consider spacecraft and astronauts to have entered space, known as the Von Karman Line – is only 62 miles (100 kilometers) above sea level.
What does space smell like?
sweet-smelling welding fumes’, ‘burning metal’, ‘a distinct odour of ozone, an acrid smell’, ‘walnuts and brake pads’, ‘gunpowder’ and even ‘burnt almond cookie’. Some astronauts have likened the smells of space to walnuts.
How cold is space?
Space is very, very cold. The baseline temperature of outer space is 2.7 kelvins (opens in new tab) — minus 454.81 degrees Fahrenheit, or minus 270.45 degrees Celsius — meaning it is barely above absolute zero, the point at which molecular motion stops. But this temperature is not constant throughout the solar system.
Does space have sound?
Space Environment
On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.
What is the loudest thing in the universe?
Greg Salvesen. As far as I’m aware, the Perseus galaxy cluster is the current record holder for the loudest sound discovered in the Universe. Generating sound requires two conditions. First, there must be a medium that the sound waves can travel through, like air or some other gas.
What is the loudest thing in the world?
The loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa at 10.02 a.m. on August 27, 1883. The explosion caused two thirds of the island to collapse and formed tsunami waves as high as 46 m (151 ft) rocking ships as far away as South Africa.
How loud is the Sun?
One heliophysicist crunched the numbers and estimates the noise would be around 110 decibels, or about the same volume as speakers at a rock concert.
Does the sun scream?
Radio screams
Gopalswamy and his team may have found a way to do just that. Like the calm before a storm (but louder), they found that coronal mass ejections with shocks capable of unleashing radio storms are preceded by “screams” in radio waves as they barrel through the solar wind.
How loud can a human yell?
Human screams can be quite loud, possibly exceeding 100 dB (as of March 2019, the world record is 129 dB!) —but you probably want to avoid that because screams that loud can hurt your ears! You should also have found sound levels drop off quickly as you get farther from the source.
