Euclid is operated by which space agency?

• ESA

• NASA

• JAXA

• Roscosmos

Answer explanation

Euclid is designed, manufactured, and operated by the European Space Agency.

Which of these light spectra is Euclid able to see the MOST of?

• Infrared

• Visible

• Ultraviolet

• Radio

Answer explanation

Euclid can see in the visible and near-infrared spectrums, with Euclid operating in wavelengths up to the color green.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What orbit does Euclid operate in?

• Low Earth Orbit

• High Polar Orbit

• Lissajous Orbit

• Geostationary Orbit

Answer explanation

Euclid will operate in an orbit around the Sun-Earth L2 Lagrange point.

Tags

NGSS.HS-ESS1-4

What launch vehicle was originally slated to launch Euclid before it was moved to the Falcon 9?

• Vega-C

• Atlas V

• Ariane 5

• Soyuz

Answer explanation

Euclid was originally slated to launch on a Soyuz ST-B launch vehicle before it was moved onto Falcon 9 on the outbreak of the War in Ukraine.

Tags

NGSS.MS-ETS1-2

Which of these designs does Euclid have in common with the James Webb Space Telescope?

• Sunshield

• Exposed Mirror

• Cryocooler

• Ion Thruster

Answer explanation

Both JWST and Euclid share the same telescope design (Korsch), and Euclid also has a sunshield to protect it from high temperatures.

Tags

NGSS.HS-ETS1-3

Which of these is closest to the launch mass, in metric tonnes, of Euclid?

• 1

• 2

• 3

• 4

Answer explanation

At launch, the total mass of Euclid will be around 2,160 kg.

Which one of these companies mainly manufactured Euclid at the request of ESA?

• The Boeing Company

• Airbus Defence and Space

• Thales Alenia Space

• Johns Hopkins Applied Physics Laboratory

Answer explanation

Thales Alenia Space was the main manufacturer of the Euclid telescope, and the manager of the payload module was Airbus Defence and Space.

True or False: Euclid is the second ESA project that did not utilize aid from NASA.

• True

• False

Answer explanation

Euclid utilized aid from NASA, specifically on the Euclid consortium of scientists and the near-infrared band instrument.

How long is the nominal mission time, in years, for Euclid?

• 6

• 8

• 10

• 12

Answer explanation

The Euclid mission team expects the spacecraft to run into some mission-ending issue (specifically, running out of fuel) at 6 years MET, but it is also expected for the mission to last much longer than that.

What fraction of the sky is Euclid expected to observe?

• 1/2

• 1/3

• 3/5

• All

Answer explanation

Euclid is expected to observe around 15,000 degrees^2 of the sky, which correlates to around 1/3 of the sky.