34719 Intermediate Trivia Questions
34719 public questions at this depth. How many can you answer?
Which 1939 model describes collapse of a uniform dust sphere into a black hole?
Answer
Oppenheimer-Snyder model
On what date was the GW150914 black-hole merger signal detected?
Answer
September 14, 2015
Which 2009-launched ESA telescope studies black holes at far-infrared wavelengths?
Answer
Herschel Space Observatory
Which physicist gave his name to black hole radiation predicted in 1974?
Answer
Stephen Hawking
For a Schwarzschild black hole, the photon sphere lies at how many Schwarzschild radii?
Answer
1.5 Schwarzschild radii
Which exact solution describes a black hole that has both electric charge and rotation?
Answer
Kerr-Newman metric
What is the name for a black hole whose mass is millions to billions of solar masses?
Answer
Supermassive black hole
What theorem says black holes are characterized only by mass, charge, and angular momentum?
Answer
No-hair theorem
What mass class lies between stellar black holes and supermassive black holes?
Answer
Intermediate-mass black hole
Which 1916 solution describes spacetime outside a spherical non-rotating mass?
Answer
Schwarzschild metric
What effect shifts light to longer wavelengths as it escapes a black hole's gravity?
Answer
Gravitational redshift
What spherical zone around a black hole can contain circular photon orbits?
Answer
Photon sphere
On what date did JWST reach the Sun-Earth L2 point?
Answer
24 January 2022
What material is JWST's spacecraft bus primarily made of?
Answer
graphite composite
How long does JWST take to see the entire sky?
Answer
six months
From one position, what share of the sky can JWST see?
Answer
40 percent
What is JWST's light-collecting area?
Answer
25.4 square meters
What is JWST's focal ratio?
Answer
f/20.2
What optical telescope type is listed for JWST's main telescope?
Answer
Korsch telescope
Which constellation contains the Tarantula Nebula?
Answer
Dorado
Which constellation is represented by a little horse?
Answer
Equuleus
On which plain inside Gale crater did Curiosity land?
Answer
Aeolis Palus
What is Curiosity's dry mass?
Answer
899 kilograms
Which Mars rover set a one-day drive record of 220 meters in 2005?
Answer
Opportunity