Telescopes and Deep Space

What this quiz asks

• Which large spiral galaxy is the Milky Way's nearest neighbour of comparable size?
• The Orion Nebula is best described as which kind of object?
• Not even light can escape from inside a black hole's event horizon.
• The Hubble Space Telescope observes mainly in which parts of the spectrum?
• The James Webb Space Telescope was built above all to observe which kind of light?
• A galaxy's spectral lines appear shifted towards longer wavelengths. What does that tell us?
• Where does the James Webb Space Telescope operate from?
• Which relationship states that more distant galaxies recede faster?
• Radio telescopes can observe the sky during daylight hours.
• Select ALL of these observatories that work from space rather than the ground.
• The first direct image of a black hole's shadow, released in 2019, showed the one at the heart of which galaxy?
• What is a quasar?
• Do ground-based telescopes use adaptive optics to undo blurring caused by Earth's atmosphere?
• Which kind of supernova serves as a standard candle for measuring cosmic distances?
• Which technique links widely separated radio dishes so they behave like one enormous telescope?
• The Crab Nebula is the wreckage of a supernova recorded by Chinese astronomers in which year?
• Why are Cepheid variable stars so useful for measuring distance?
• Order these from nearest to Earth to farthest away.
• Select ALL of these that are galaxies rather than nebulae.
• Roughly how wide is the Milky Way's disc of stars?