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Astrophysics Questions and Answers (Q&A)

How long does an average star take to run out of fuel?
Anthony Paul Bonadio, Teacher
Answered: Jan 31, 2019
As stars get smaller, they live longer. Earth's sun has been around for 4.5 billion years, slowly turning hydrogen into helium at its center. It will run out of this hydrogen fuel in another five...Read More

2 Answers

227 views
Why does a neutron star have so much gravity?
John F. connor, Content Marketing executive
Answered: Feb 08, 2019
A neutron star is created when a star is around eight to ten times Earth's sun burns out. The outward pressure generated by fusion reduces rapidly, allowing gravity to pull the star in on...Read More

2 Answers

224 views
Do all stars emit their own energy?
John F. connor, Content Marketing executive
Answered: Feb 08, 2019
Including our own sun, stars are hot balls of glowing plasma held together by their own gravity, which is very intense. Stars are always crushing themselves inward, and the gravitational f...Read More

2 Answers

218 views
How many types of star remnants are there?
Bergeront Tiffney, Computer Engineer
Answered: Jan 31, 2019

When stars die, they leave behind remnants, usually compact objects of some sort. What kind of remnant it is depends on the initial mass of the star, and how it met its'...Read More

2 Answers

217 views
Can a black hole be larger than its original star?
Bergeront Tiffney, Computer Engineer
Answered: Jan 31, 2019
Most black holes are created from star remnants after a supernova explosion. Smaller stars become thick neutron stars, which are not gigantic enough to trap light. If the star’s total mass...Read More

2 Answers

217 views
What are the conditions needed for a celestial body to be declared a star?
L. Sevigny, Doctor
Answered: Dec 03, 2018
Stars are celestial objects that can make their own light. They are extremely hot and extremely large in size. They are mostly made up of hydrogen gas with a little helium in them. The sun is...Read More

2 Answers

216 views
What is responsible for a star's gravity?
Anthony Paul Bonadio, Teacher
Answered: Jan 31, 2019
With the gravitational shrinking of a gaseous nebula of material composed primarily of hydrogen, helium and trace amounts of heavier elements, a star's life begins. With the nebula shrinks,...Read More

2 Answers

216 views
Can the sun become a neutron star?
J. Shatner, Content writer
Answered: Dec 03, 2018
A lot of experts say that it is not possible for the sun to become a neutron star. It is true that the sun is big. It is so big that there are different planets that revolve around it but it does...Read More

1 Answer

214 views

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