Answers to Space Science Questions

Can two black holes merge together if they get close enough to each other?

What would happen if you lit a match in space? Considering there's oxygen in the air on a space station but no up...

According to the Hubble space telescope, the known universe is expanding. What is it expanding in to and how far can it...

Where does the microwave background radiation come from, how was it made and why is it still around?

Is gravity around the planet constant? If you have a spinning ball and put a penny on it, it will be thrown off at the...

As light from other galaxies takes so long to reach us, can we be sure that any of them are still there?

My wife was out on Friday evening and noticed that the Moon was much larger than normal. Is there a reason for this?

If you have a star which is approximately 860,000 miles across and it explodes like a supernova, would the matter...

Life on Earth uses energy either directly or indirectly from the sun. However there are deep sea organisms that live...

Generally speaking, is the Sun really shrinking at a speed people should be worried about?

Are we any closer to working out how geomagnetic fluctuations in the Sun affect our climate?

Sitting in my kitchen which faces west, I can see the sun well up in the sky and I can also see the moon. But the moon...

I know that there is a wide range of frequencies in the electromagnetic radiation that comes from the sun. But exactly...

Does the Sun move and what impact could the movement of the Sun and changes in velocity have on things like other...

How cold is it in outer space and how do you protect satellites from extreme cold?

Why do we assume that life on other planets would be a carbon-based, Homo erectus type of being that breathes oxygen?...

I understand the basic idea that for every action there is a reaction, which is why I can walk across the ground. But...

Could sound waves be heard on Mars?

Why are some planets surrounded by rings and not encased in a sphere of debris? Shouldn't gravitational pull act...

Are there any immediate effects of sun spots on the weather, such as when solar bursts occur? What about long term...

How many satellites are currently circling the Earth?

Which way does the Earth travel around the sun and is the sun spinning and moving too?

What makes the Earth spin and will it ever stop?

We know that meteorites hit the Earth quite well. The sun is hundreds of thousands times bigger than the Earth, and so...