Galaxies
What color are older galaxies?
Red
Explanation: Stars that are more blue are younger while stars that are more red are older, so galaxies with more red stars are older.
What are singularities?
Singularities are theoretical points of infinite mass density at end of black holes
What is nuclear pasta?
Crust of a neutron star
What was NASA's DART mission?
First mission trying to redirect path of an asteroid in the Kuiper belt
What is the Hubble Constant?
The Hubble Constant is a number that describes the universe's expansion
Are barred galaxies older or younger than unbarred galaxies?
Older
Explanation: As unbarred galaxies get older, their spiral arms combine to become more defined
Supermassive black holes!
Name one type of nuclear pasta
Possible answers: Gnocchi, Spaghetti, Waffles, Lasagna, Antignocchi, Antispaghetti, Defects
Most recent NASA space telescope
James Webb Space Telescope
What is an AU?
AU stands for Astronomical Unit, and represents the distance between the Earth and the Sun
How many types of galaxies have been discovered in the universe? (Name them for brownie points~)
4 types: spiral, elliptical, irregular, lenticular
+theoretical dark galaxy, but that doesn't count as an answer for this question lol
Which part of a black hole’s accretion disk is its Active Galactic Nucleus (AGN)?
The AGN is the brightest radiation-emitting region of a black hole.
How many types of supernovae are there?
3
Name one of NASA’s 4 great observatories
Possible answers: Hubble Space Telescope, Spitzer Space Telescope, Chandra X-Ray Observatory, Compton Gamma Ray Observatory
What does ⊕ represent?
⊕ is a symbol representing the Earth
All galaxies are held together by ____.
Dark matter!
Explanation: Galaxies don't have enough mass to exist without dark matter holding them together
What are the 3 types of black holes?
Supermassive, stellar-mass, & intermediate mass
Which type of supernova was most recently discovered?
Type III, electron collapse supernova
How is the military involved in astronomers’ sky-viewing sessions at observatories?
They section off areas of the sky that the astronomers are not allowed to observe to obscure the location of military satellites
What does ☉ represent?
☉ is a symbol representing the Sun
Name/describe the 2 types of galaxy mergers
1: Minor merger, aka cannibalism, where larger galaxy consumes a smaller galaxy
2: Major merger, where 2 similarly sized galaxies combine to form a new galaxy
How do black holes lose energy?
Hawking Radiation
Which type of supernova is used as a standard candle to measure distance?
Type 1a supernova (white dwarf explosion), because they all explode about the same way with the same brightness
Most scientifically productive land telescope
Keck Observatory twin telescopes in Hawaii
Fun fact: I had an astronomy professor during a summer program who visited and took pictures with the telescopes' giant lenses while doing maintainence
Types of Active Galactic Nuclei
Quasars & Seyferts