Space Exploration: From Sputnik to the James Webb Telescope

Question 1

What was the name of the first artificial satellite launched into orbit, in October 1957?

Accepted Answer

Sputnik 1

Answer

Explorer 1

Answer

Vanguard 1

Answer

Luna 1

Question 2

Who was the first human to travel to space, completing a 108-minute orbit in April 1961?

Accepted Answer

Yuri Gagarin

Answer

Alan Shepard

Answer

Gus Grissom

Answer

John Glenn

Question 3

Which Apollo mission first landed humans on the Moon?

Accepted Answer

Apollo 11

Answer

Apollo 8

Answer

Apollo 10

Answer

Apollo 12

Question 4

How many astronauts in total walked on the Moon across all Apollo missions?

Accepted Answer

12

Answer

6

Answer

9

Answer

18

Question 5

What flaw was discovered in the Hubble Space Telescope shortly after its 1990 launch?

Accepted Answer

The main mirror had been ground to the wrong shape (spherical aberration), blurring all images

Answer

A camera lens cracked during launch, reducing image resolution by 80%

Answer

The solar panels failed to deploy, leaving the telescope without power for six months

Answer

The telescope was placed in the wrong orbit and had to be boosted to the correct altitude

Question 6

Unlike the Hubble Space Telescope, the James Webb Space Telescope primarily detects which type of light to see further into the universe?

Accepted Answer

Infrared light

Answer

Ultraviolet light

Answer

X-ray radiation

Answer

Gamma-ray radiation

Question 7

On what date was the James Webb Space Telescope launched from Earth?

Accepted Answer

December 25, 2021

Answer

July 4, 2022

Answer

March 21, 2021

Answer

November 16, 2020

Question 8

As of 2023, which planet holds the record for the most confirmed moons in the solar system?

Accepted Answer

Saturn (146 confirmed moons)

Answer

Jupiter (95 confirmed moons)

Answer

Uranus (28 confirmed moons)

Answer

Neptune (16 confirmed moons)

Question 9

Voyager 1, launched in 1977, achieved which historic milestone in 2012?

Accepted Answer

It became the first human-made object to enter interstellar space — beyond the heliosphere

Answer

It made the closest approach to a star other than the Sun

Answer

It completed a full orbit of the solar system

Answer

It discovered a new dwarf planet beyond Pluto's orbit

Question 10

Who was the first woman to travel to space, completing three orbits of Earth in 1963?

Accepted Answer

Valentina Tereshkova

Answer

Sally Ride

Answer

Svetlana Savitskaya

Answer

Eileen Collins

Question 11

Who performed the first spacewalk in history, in March 1965?

Accepted Answer

Alexei Leonov (Soviet Union)

Answer

Edward White (USA)

Answer

Neil Armstrong (USA)

Answer

Gus Grissom (USA)

Question 12

The Space Shuttle Challenger broke apart 73 seconds after launch on January 28, 1986, killing all seven astronauts aboard. What was the primary cause?

Accepted Answer

O-ring seals on the right solid rocket booster failed in cold temperatures, allowing hot gases to escape

Answer

A fuel line rupture caused an uncontrolled engine burn that overwhelmed the orbiter structure

Answer

Lightning struck the spacecraft during ascent, causing catastrophic electrical failure

Answer

A tile on the thermal protection system failed, causing break-up during max-Q aerodynamic stress

Question 13

In 2019, what did astronomers capture for the first time in history using the Event Horizon Telescope?

Accepted Answer

The first direct image of a black hole (in galaxy M87)

Answer

The first image of a planet orbiting another star in real time

Answer

The first image of the Milky Way's galactic centre in visible light

Answer

The first image of dark matter distribution in a galaxy cluster

Question 14

Light takes approximately how long to travel from the Sun to the Earth?

Accepted Answer

About 8 minutes

Answer

About 8 seconds

Answer

About 8 hours

Answer

About 8 days

Question 15

In 2006, the International Astronomical Union voted to reclassify Pluto as a 'dwarf planet.' What was the primary reason?

Accepted Answer

Pluto has not 'cleared the neighbourhood' around its orbit of other debris — a key criterion for full planet status

Answer

Pluto was found to be smaller than Earth's Moon, and the IAU required full planets to be larger than moons

Answer

New observations showed Pluto had no geological activity and was classified as an inert rock

Answer

Pluto's orbit is so irregular that it crosses Neptune's path, disqualifying it as a proper planet

Question 16

How many stars does our Milky Way galaxy contain, approximately?

Accepted Answer

100 to 400 billion stars

Answer

1 to 10 million stars

Answer

1 to 10 trillion stars

Answer

Exactly 100 billion stars

Question 17

What key fact did Neil Armstrong express with his famous words on the Moon — 'That's one small step for [a] man, one giant leap for mankind'?

Accepted Answer

The 'a' before 'man' was lost in static — Armstrong confirmed he meant 'one small step for a man'

Answer

The phrase was pre-written by NASA speechwriters before the mission

Answer

Armstrong improvised a different phrase; NASA substituted this one in the broadcast

Answer

The words were delayed 90 seconds in transmission, reaching Earth after Armstrong had moved on

Question 18

Which SpaceX mission in 2020 became the first crewed American spacecraft launch to the International Space Station since the Space Shuttle retired in 2011?

Accepted Answer

Crew Dragon Demo-2 (SpaceX)

Answer

Boeing Starliner OFT-2

Answer

Orion EM-1 (Artemis I)

Answer

Dream Chaser CTS-100

Question 19

The International Space Station has been continuously inhabited since November 2, 2000. As of 2026, approximately how long has it had uninterrupted human presence?

Accepted Answer

About 25 years

Answer

About 15 years

Answer

About 30 years

Answer

About 10 years

Question 20

What is the name of NASA's program to return astronauts to the Moon for the first time since Apollo 17 in 1972?

Accepted Answer

Artemis

Answer

Constellation

Answer

Orion

Answer

Lunar Gateway

Space Exploration: From Sputnik to the James Webb Telescope

What was the name of the first artificial satellite launched into orbit, in October 1957?

Publisher

Space Exploration: From Sputnik to the James Webb Telescope