Sun
Solar System
Universe
Chemistry
100
What color is the Sun?
However, the Sun is essentially all colors mixed together, which appear to our eyes as white.
100
What is our solar system called?
It's just called "the Solar System". (Plenty of places and objects have names like that; it's no different from "the Arctic" or "the Moon" or "the Sun".) ("Sol system" is an invention of science fiction writers; it has no general use outside some science fiction contexts.
100
Is the Universe infinite?
The observable universe is still huge, but it has limits. That's because we know the universe isn't infinitely old — we know the Big Bang occurred some 13.8 billion years ago. That means that light has had “only” 13.8 billion years to travel.
100
Who created the Periodic Table?
Dmitri Mendeleev
200
What is the closet planet to the Sun?
Mercury is the planet closest to the Sun, while Neptune is the farthest one from the Sun.
200
What planet was removed from the Solar System?
pluto
200
What is the closet star to Earth?
Proxima Centauri
Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away. (Or about 268,770 AU.) When we talk about the distances to the stars, we no longer use the AU, or Astronomical Unit; commonly, the light year is used.
200
What is the first element of the Periodic Table?
hydrogen
300
What surrounds the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
300
How many planets are in our Solar System?
8
300
How do stars form?
Star formation happens in interstellar molecular clouds: opaque clumps of very cold gas and dust. The process starts when some of those clumps reach a critical mass, allowing them to collapse under their own gravity.
300
What element is Fe?
Iron
400
How big is the sun (aprox)
864,000 miles (1,392,000 km) in diameter
400
Does the Solar System go on forever?
It is about the long-term future of the Solar System, which will come to an end in about 100 billion years. Our Solar System is on its way out. Slowly. Over the next several billion years, a series of unfortunate events will take place, spanning from the not-so-great to the truly tragic.
400
What is the death of a star?
When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars.
400
How much Noble Gases are there?
noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
500
What theory has the Sun in the middle of the solar system?
Heliocentrism
Heliocentrism (also known as the Heliocentric model) is a superseded astronomical model in which the Earth and planets revolve around the Sun at the center of the universe. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at the center.
500
How many stars are in the solar system?
one star
500
How do Black Holes form?
How Do Black Holes Form? Primordial black holes are thought to have formed in the early universe, soon after the big bang. Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space.
500
How many elements are in the Periodic Table?
118