Physics ยท Science General

Astronomy and Cosmology

4,450 Questions

This topic provides questions on astronomy, cosmology, and the physical universe. It covers subjects like the Hubble sequence, constellations, dark matter, and stellar evolution. These questions help build a strong foundation for general science exam sections.

Galaxies and clustersConstellations and starsStellar evolutionSpace observatories

Astronomy and Cosmology Questions

Multiple choice

What is the name of the supernova remnant depicted on a stamp issued by China in 2005?

  1. Crab Nebula

  2. Vela Supernova Remnant

  3. Cassiopeia A

  4. Cygnus Loop
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

China issued a stamp in 2005 featuring the Crab Nebula, a supernova remnant located in the constellation Taurus.

Multiple choice

What is the name of the supernova depicted on a stamp issued by the United Kingdom in 2017?

  1. SN 1987A

  2. SN 1054

  3. SN 1572

  4. SN 1604
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The United Kingdom issued a stamp in 2017 featuring SN 1054, a supernova that occurred in the constellation Taurus and is known for its beautiful remnant, the Crab Nebula.

Multiple choice

What is the name of the supernova remnant depicted on a stamp issued by Canada in 2020?

  1. Crab Nebula

  2. Vela Supernova Remnant

  3. Cassiopeia A

  4. Cygnus Loop
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Canada issued a stamp in 2020 featuring Cassiopeia A, a supernova remnant located in the constellation Cassiopeia.

Multiple choice

What is the name of the supernova depicted on a stamp issued by Japan in 2022?

  1. SN 1987A

  2. SN 1054

  3. SN 1572

  4. SN 1604
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Japan issued a stamp in 2022 featuring SN 1987A, a nearby supernova that was visible to the naked eye.

Multiple choice

What is the name of the supernova remnant depicted on a stamp issued by Australia in 2024?

  1. Crab Nebula

  2. Vela Supernova Remnant

  3. Cassiopeia A

  4. Cygnus Loop
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Australia issued a stamp in 2024 featuring the Vela Supernova Remnant, a supernova remnant located in the constellation Vela.

Multiple choice

What is the name of the supernova depicted on a stamp issued by China in 2026?

  1. SN 1987A

  2. SN 1054

  3. SN 1572

  4. SN 1604
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

China issued a stamp in 2026 featuring SN 1572, a supernova that was observed by Tycho Brahe and is known for its bright appearance.

Multiple choice

What is the Drake equation?

  1. An equation that estimates the number of extraterrestrial civilizations in the Milky Way galaxy

  2. An equation that estimates the age of the universe

  3. An equation that estimates the distance to the nearest star

  4. An equation that estimates the mass of a black hole
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Drake equation is an equation that attempts to estimate the number of extraterrestrial civilizations in the Milky Way galaxy. It is based on a number of factors, including the number of stars in the galaxy, the fraction of stars that have planets, the fraction of planets that are habitable, and the fraction of habitable planets that actually have life.

Multiple choice

What is the primary evidence for the existence of dark matter?

  1. The rotation curves of galaxies

  2. The gravitational lensing of light

  3. The cosmic microwave background radiation

  4. The abundance of heavy elements in the universe
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The rotation curves of galaxies show that the stars in the outer regions of galaxies are moving faster than expected based on the visible mass of the galaxy. This suggests that there is a large amount of unseen mass, or dark matter, holding the galaxy together.

Multiple choice

What is the composition of dark matter?

  1. Weakly interacting massive particles (WIMPs)

  2. Axions

  3. Sterile neutrinos

  4. Primordial black holes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Weakly interacting massive particles (WIMPs) are hypothetical particles that are thought to be a possible candidate for dark matter. They are massive but interact very weakly with other particles, making them difficult to detect.

Multiple choice

Which of the following is not a candidate for dark matter?

  1. Axions

  2. Sterile neutrinos

  3. Black holes

  4. Weakly interacting massive particles (WIMPs)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Black holes are not a candidate for dark matter because they are too massive and would have been detected by now.

Multiple choice

What is the name of the satellite mission that was launched in 2005 to study dark energy?

  1. Hubble Space Telescope

  2. Chandra X-ray Observatory

  3. Wilkinson Microwave Anisotropy Probe (WMAP)

  4. Planck satellite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Wilkinson Microwave Anisotropy Probe (WMAP) was a satellite mission that was launched in 2005 to study dark energy. It made detailed measurements of the cosmic microwave background radiation, which provided valuable information about the early universe and the properties of dark energy.

Multiple choice

What is the name of the satellite mission that was launched in 2009 to study dark energy?

  1. Hubble Space Telescope

  2. Chandra X-ray Observatory

  3. Wilkinson Microwave Anisotropy Probe (WMAP)

  4. Planck satellite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Planck satellite was a satellite mission that was launched in 2009 to study dark energy. It made even more detailed measurements of the cosmic microwave background radiation than WMAP, providing even more valuable information about the early universe and the properties of dark energy.

Multiple choice

What is the name of the telescope that is currently being built to study dark energy?

  1. James Webb Space Telescope

  2. Giant Magellan Telescope

  3. Thirty Meter Telescope

  4. Extremely Large Telescope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The James Webb Space Telescope is a space telescope that is currently being built to study dark energy. It is expected to launch in 2022 and will be able to study the universe in infrared light, which will allow it to see through dust and gas and study the early universe in more detail than ever before.

Multiple choice

What is the name of the experiment that is currently being conducted to study dark matter?

  1. LUX-ZEPLIN (LZ)

  2. XENONnT

  3. PandaX-4T

  4. DarkSide-20k
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

LUX-ZEPLIN (LZ) is an experiment that is currently being conducted to study dark matter. It is located in the Sanford Underground Research Facility in South Dakota and is the largest and most sensitive dark matter detector ever built.

Multiple choice

What is the name of the experiment that is currently being conducted to study the properties of dark matter?

  1. LUX

  2. XENON1T

  3. PandaX-II

  4. DarkSide-50
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

LUX is an experiment that is currently being conducted to study the properties of dark matter. It is located in the Sanford Underground Research Facility in South Dakota and is designed to detect dark matter particles by measuring the scintillation light produced when they interact with xenon atoms.