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2 votes
2 answers
186 views

What is stopping Event Horizon Telescope the size of the Earth’s orbit?

There is a proposal to include a radio sensor in a telescope going to the Sun-Earth L2, getting 120x improvement in angular resolution to EHT. Knowing nothing about interferometry, it seems pretty ...
Ahmbak's user avatar
  • 123
2 votes
1 answer
126 views

Are there any space-based observatories that use interferometry?

Ground-based interferometers such as ALMA have enabled many discoveries. It seems like sending a fleet of small telescopes would be feasible (smaller telescopes are easier to send into space than ...
usernumber's user avatar
  • 17.6k
1 vote
1 answer
57 views

Giant variation of the proposed eLISA mission using reflectors on Earth and the Moon possible?

I was thinking about the proposed ESA mission eLISA, which is essentially a space version of the LIGO experiment, and it occurred to me that trailing three satellites behind the Earth's orbit seemed ...
Drunken Code Monkey's user avatar