legacy
Over the last decade, conclusive evidence has been uncovered that at least some gamma ray bursts are associated with supernovae Some gamma ray bursts are observed to have...
Thanks for your interest in our website! Unfortunately, the Ask an Astronomer service lapsed over the past few years, and we had to move to this domain to re-establish it This...
This is a very insightful question I'd be interested to know what Dr Schramm told you about it In any case, the answer is somewhat subtle I'll treat the gravitational case here,...
In a sense, particles will decay because they are lazy: they want to be in the lowest possible energy state they can reach So, if the decay products have lower energy than the...
"Is the earth very slowly getting larger and why PS I stand to win 20 quid off me mate if the answer is yes !!!!" I am not aware that this is happening and I can think of no...
It is theorized that an island of nuclear stability exists in the 114-116 region of atomic mass (Note by Sara: I think you mean atomic number) I assume that even though we...
The Sun has a radius 100 times that of the Earth which means that about 1,000,000 (1 million) Earths would fit into the Sun! By the way, take a look at the NASA Kids...
This question is still very much studied in astrophysics! The answer depends on how "close" you want your close encounter to be It is very unlikely that a passing star entered the...
The question of what happened before the big bang is a long-standing mystery and it is currently not clear if and how we would ever definitely answer it It is one of those simple...