Question: As per definition, Gravitational lensing refers to bending of light rays from a distant source around a massive…
Select :
AsteroidsBlack HolesCareers in AstronomyCelestial EventsCometsConstellationsCosmic DistancesCosmic Microwave BackgroundCosmologyExoplanetsGalaxiesGravity WavesHoaxesMoonPhysicsPlanetsRadio AstronomyScientific MethodSETISolar SystemSpace ProbesStarsSunTelescopesUnexplained Celestial Observations
Top Achievements for the NRAO Very Large Array
Question: I’m embarrassed to ask this, as I feel after working here for so long I should already know…
Are Quasars and Radio Galaxies the Same Thing?
Question: I’m interested in the differences and similarities between radio galaxies and quasars. Different sources say different things. Are…
How can a Telescope Image Both a Galaxy and the Stars within it?
Question: How can Hubble give pictures with different zoom levels? If telescopes are constructed with a fixed focal length…
Detecting a Galaxy Cluster With a Radio Telescope
Question: Is it possible for a 7-m radio telescope to detect a galaxy cluster of redshift below 0.03? —…
How Did the First Galaxies Form?
Question: From where did this initial cloud of gases and dust come? In other words, how did the cloud…