Our epic science wall by Angela De Dominicis

Black holes do not trap light. Instead their gravitational pull is too high/strong, that it does not allow light to pass from it. If you mean can photons inside the event horizon of a black hole make it out, the answer is no.

2019-05-01 18:44:33 UTC

Yes some times energy can be dangerous.

2019-05-01 18:47:54 UTC

2019-05-01 18:48:33 UTC

Space is endless

2019-05-01 18:48:45 UTC

Centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated. The concept is sometimes useful in designing static structures (e.g., buildings and bridges) or in predicting the behaviour of a moving body when it is acted on by gravity

Can energy be released as a wave physically?

2019-05-01 18:49:30 UTC

Yes, r

2019-05-01 18:51:40 UTC

your body will stretch super long and then your body will shrink very small

sound in space

rapinsan_ramesh — 2019-05-01 18:51:47 UTC

Sound in space not possible because sound is atoms moving quickly

Black holes

2019-05-01 18:53:43 UTC

Black holes is a small area in space that is so dense that it attracts everything to itself. it may mesure no more than 5 km

oil and gas are not endless. Everything else is close to endless.

2019-05-01 18:54:14 UTC

To midhunan 2.0

2019-05-01 18:55:42 UTC

There are all lot of types of energy.

What countries are part of the I.S.S

2019-05-01 21:56:50 UTC

Great question: What countries are part of the I.S.S. The I.S.S is part of the United States of America (NASA) however there are 14 other countries take part in the I.S.S. The 14 other countries include Russia, Canada, Brazil, France, Germany, Italy, Netherlands, Norway, Spain, Sweden, Switzerland, and the United Kingdom.

How many stars are there in space?

2019-05-01 22:20:20 UTC

Great question: In our universe there are about 10 billion galaxies and for each galaxy there are about 100 billion stars, so in total there about 1 billion trillion stars in the whole universe.

Planets ~Aqsa

2019-05-02 17:24:48 UTC

Planets have the colors that they have because of what they are made of and how their surfaces or atmospheres reflect and absorb sunlight. Mercury has a dark gray, rocky surface which is covered with a thick layer of dust. The surface is thought to be made up of igneous silicate rocks and dust.

Space and Universe ~Aqsa

2019-05-02 17:28:24 UTC

It’s hard to wrap our heads around the size of our galaxy, let alone the Universe. At 100,000 light-years across, it would take the New Horizons space probe—the fastest object ever launched by humans—some 1,844,000,000 years to travel from one side of the Milky Way to the other (it’s currently moving away from Pluto at 58,536 km/h or 36,373 mph).

Sarjena - How bright is a laser beam when viewed from the side.

2019-05-02 17:30:22 UTC

While traveling through the vacuum of space, laser beams are invisible unless shot directly into your eye. The experience you know of as vision consists of light entering your eyes and being detecting by cells on your retinas. You can't see any light that never enters your eyes. A beam of light, including laser light, will not enter your eye unless aimed directly at it or reflected directly into it by an object. The vacuum of space does not have anything to reflect the light back into your eye. Only by adding air, dust, or debris does a light beam become visible from the side.

How Bright is the Galaxies Light ~Aqsa

2019-05-02 17:32:06 UTC

Astronomers have estimated that the total luminosity of the central dozen or so light-years of our galaxy is equal to about 10 million suns. That sounds big and bright – until you recall that the center of our galaxy is 25,000 light-years away

does sound travel faster in space

arden_huang — 2019-05-02 17:34:26 UTC

there is no sound in space because there are no molecules to vibrate, so it cant travel.
arden

Milky Way ~Aqsa

2019-05-02 17:35:54 UTC

The Milky Way is the Galaxy in which we live. It is a spiral shaped galaxy that contains several hundred billion stars, including our Sun. It is about 100,000 light-years across and about 10,000 light-years thick.

How was the moon created?

arden_huang — 2019-05-02 17:36:03 UTC

A planet about the size of mars collided with the young earth, and the debris gathered and formed the moon.
arden

Black Holes

arden_huang — 2019-05-02 17:38:24 UTC

From the outside, the object going inside will seem to slow down and turn red. Then, it will fade away.
arden

Kave

2019-05-02 17:39:22 UTC

space was discovered in 1923 and it is discovered by american astronomer Edwin Hubble

White Holes ~Aqsa

2019-05-02 17:39:56 UTC

In general relativity, a white hole is a hypothetical region of spacetime which cannot be entered from the outside, although matter and light can escape from it. In this sense, it is the reverse of a black hole, which can only be entered from the outside and from which matter and light cannot escape.

what will black holes do if 3 stars die at the same time

arden_huang — 2019-05-02 17:41:44 UTC

the black hole would get significantly bigger
Arden

How does sound work in space?

2019-05-02 17:41:45 UTC

For sound to travel, there has to be something for the sound molecules to travel through. Since in space there are large empty areas, there is nothing for the molecules to travel through. There is no sound in space.

Why are the colours warm for the gas giants??

arden_huang — 2019-05-02 17:43:05 UTC

but uranus is blue.
arden

2019-05-02 17:44:12 UTC

Does sound travel fast in space?

2019-05-02 17:44:13 UTC

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing. Exploding bombs, crashing asteroids, supernovas, and burning planets would similarly be silent in space. In a space ship, you could of course hear the other passengers because your ship is filled with air.

why couldn't astronaut land on mars but can land on moon?

arden_huang — 2019-05-02 17:45:20 UTC

we dont have enough energy. and if we did, it would take many years. but we can start on the moon.
-Arden

What is the Universe ~Aqsa

2019-05-02 17:48:05 UTC

all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

Samuel

2019-05-02 17:48:52 UTC

Why can´t we live in mars?

2019-05-02 17:49:19 UTC

The surface temperature of mars can range between -87 degrees celsius and -5 degrees celsius.

Constellations ~Aqsa

2019-05-02 17:49:33 UTC

a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Modern astronomers divide the sky into eighty-eight constellations with defined boundaries.

Black holes have a finite lifetime due to the emission of Hawking radiation. However, for most known astrophysical black holes, the time it would take to completely evaporate and disappear is far longer than the current age of the universe. For example, a black hole with the mass of the Sun would take 2×1067 years to evaporate, whereas the age of the universe is only 13.8×109 years (thus it will take more than 1057 times the current age of the universe for that black hole to evaporate!)

2019-05-02 17:50:20 UTC

Hafsa

How was the Moon created?

2019-05-02 17:50:32 UTC

sabariah_ahmed — 2019-05-02 17:51:01 UTC

you

we can not live on mars yet because mars has extreme temperatures that humans can't live on without a biodome.at night the temperatures can reach to -57 and at day time it is 80 so that is why we can not live on mars.

sabariah_ahmed — 2019-05-02 17:51:03 UTC

Stars (Planets) ~Aqsa

2019-05-02 17:51:04 UTC

Mercury < Mars < Venus < Earth.
Earth < Neptune < Uranus < Saturn < Jupiter.
Jupiter < Proxima Centauri < Sun < Sirius A.
Sirius A < Pollux < Arcturus < Aldebaran.
Aldebaran < Rigel A < Antares A < Betelgeuse.
Betelgeuse < Mu Cephei < VV Cephei A < VY Canis Majoris.

kave why is saturn the 5th brightest It is also the fifth brightest object in the solar system. In Roman mythology Saturn was the father of Jupiter, king of the gods. This relationship makes sense given that the planets Saturn and Jupiter are similar in so many respects, including size and composition.

2019-05-02 17:51:24 UTC

Imblack hole have a singularityGeneral relativity predicts that any object collapsing beyond a certain point (for stars this is the Schwarzschild radius) would form a black hole, inside which a singularity (covered by an event horizon) would be formed

2019-05-02 17:53:16 UTC

is space endless

2019-05-02 17:54:43 UTC

kave

Can energy be released as a wave physically?

2019-05-02 18:27:17 UTC

Yes, radiation waves, colour, photoelectric, and nuclear fusion.

No bihandu the energy can't destroy other.

2019-05-02 18:29:24 UTC

The first law of thermodynamics applies to all energy transformations including chemical reaction. This means that a chemical reaction can release or absorb energy, but it can never create or destroy energy. ... If a chemical reaction releases energy it would have to go into the
surrounding

Renewable sources of energy are better than non-renewable sources because they refill there self

2019-05-02 18:31:23 UTC

A black hole contains dark energy and kinetic energy.

2019-05-02 18:32:21 UTC

bihandu_athukorala — 2019-05-02 18:36:41 UTC

Energy can be dangerous. Like if you put a fork in an outlet, you have a big chance of getting shocked.

Can Energy move fast enough to go faster than an airplanes turbines moving?

2019-05-02 18:37:12 UTC

Yes radars.

Midhunan 0.0

midhunan_suseelan — 2019-05-02 18:38:47 UTC

Energy can be neither created nor destroyed but only changed from one form to another.

A new way to make electricity is by using lemons and those bycicles

bihandu_athukorala — 2019-05-02 18:42:25 UTC

No Bihandu

2019-05-02 18:45:03 UTC

Energy can only create a blast or wave but can not destroy each other.

The most common energy we use is electric energy because most people around the world use electronic kitchen microwave, fridge and ect.

2019-05-02 18:45:11 UTC

The most energy used for the humans are:

2019-05-02 18:45:27 UTC

electricity and natural gas are the most-used energy sources.

2019-05-02 18:48:33 UTC

You should use renewable energy.

Can energy munipulate itself

2019-05-02 18:49:22 UTC

????

What contains blackain hole energy:

2019-05-02 18:49:36 UTC

It mostly contain kinetic energy and gravitational energy .

A way to make electricity is by using lemons.

bihandu_athukorala — 2019-05-02 18:54:40 UTC

energy is not going to end if we save energy it is not going to end.

2019-05-02 18:55:38 UTC

hytytehhhhhygbyunibhumilngyut

2019-05-02 18:58:37 UTC

2019-05-02 18:58:46 UTC

A common type of energy is electricity.