Topic
Observations
3 questions tagged Observations — spanning every one of the seven Ws.
where
Where is the Hubble Deep Field located?
The Hubble Deep Field was taken in a tiny patch of sky in the constellation Ursa Major. The telescope stared at an apparently empty region for days in 1995.
AstronomyObservations
how
How do astronomers detect rings around planets that are too faint to see directly?
They use starlight occultations, infrared measurements, and spacecraft imaging to spot tiny dips in light caused by ring particles.
SpaceObservations
what
What is the Hubble tension?
The Hubble tension is the disagreement between different measurements of the universe’s expansion rate. One set of methods gives a lower value, while another gives a higher one.
CosmologyObservations