Explorer program

Which of these rocket families have never launched an explorer spacecraft?

• Delta

• Pegasus

• Falcon 9

• Atlas

On which launch vehicle was the first explorer spacecraft launched?

• Juno 1

• Delta IV medium

• Falcon 9

• Pegasus

True or false: the explorer program is still ongoing

• True

• False

Which of these is the only explorer mission launched since 2020?

• IXPE

• ICON

• GOLD

• TESS

True or false: there has been an explorer launch on a Russian rocket.

• True

• False

On which Russian rocket was that explorer launch?

• Proton-K

• Proton-M

• Soyuz

• Zenit

How many explorer launches have there been to date?

• 17

• 37

• 69

• 97

Which of these explorer missions is currently the next scheduled to launch?

• AWE

• Gusto

• XRISM

• SunRISE

What is special about the GUSTO mission?

• It will get carried to the stratosphere on a weather balloon

• It will launch on a Japanese rocket

• It’s a reentry probe

• It will launch on a CRS mission to the iss

In which year was Explorer-1 launched?

• 1958

• 1960

• 1956

• 1954