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Moon and Mars: questions and answers
Moon and Mars: the most searched Space questions, with a direct answer, an explanation and sources.
Moon and Mars
Why is the moon red tonight?
Almost always it's our atmosphere, not the Moon itself: when it's low on the horizon, its light crosses much more air, which scatters away the blue and lets… more…
Moon and Mars
Why can't they land on the Moon?
Yes, they can: the Apollo 11 module touched down in the Mare Tranquillitatis on July 20, 1969 at 20:17:40 UT, and the crew spent 21 hours and 36 minutes on… more…
Moon and Mars
Where did Apollo 11 land on the Moon?
Apollo 11 landed in the Sea of Tranquility, a basaltic plain on the near side, at 0.67416° N latitude and 23.47314° E longitude. The Eagle lunar module… more…
Moon and Mars
Why did apollo 11 go to the moon?
Because the United States had publicly committed itself to it. On 25 May 1961 Kennedy asked Congress to back landing a man on the moon and returning him… more…
Moon and Mars
How fast was Artemis II going?
Orion reentered the atmosphere at about 25,000 miles per hour (mph), according to NASA. During the mission it traveled 695,081 miles in total and reached… more…
C1cada (CC BY SA), vía commons Moon and Mars
What is the waning moon?
A waning moon is one that shows less lit surface each night: the stretch of the cycle running from full moon to new moon. In the eight-phase sequence NASA… more…
Moon and Mars
Why does neil armstrong have a hollywood star?
Strictly he does not have a star. Armstrong, Aldrin and Collins share four circular monuments resembling the Moon, one at each corner of Hollywood and Vine… more…
Moon and Mars
What is the gravity on Mars?
On Mars, gravitational acceleration at the equator is 3.69 m/s², versus 9.78 m/s² on Earth; a ratio of 0.377. Mass stays the same, only weight decreases… more…
Moon and Mars
When is Mars closest to Earth?
Mars is closest to Earth around each opposition, which repeats roughly every 26 months. The next opposition falls on February 19, 2027, at 15:45 UT, and… more…
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Moon and Mars
How long does it take Starship to get to Mars?
No Starship has flown to Mars yet (as of October 2026). SpaceX's plan targets transits of three to four months, which require departing with full tanks after… more…
NASA Goddard Space Flight Center (CC BY), vía commons Moon and Mars
Why is artemis 2 going to the moon?
Artemis II let NASA test, with astronauts aboard, what had only been tried uncrewed: that Orion can carry people to the Moon and bring them home. It flew from… more…
Moon and Mars
How did Mars lose its atmosphere?
For lack of a global magnetic field and sufficient mass. More than four billion years ago, Mars's internal dynamo shut down, exposing its atmosphere to the… more…
Moon and Mars
Where does Artemis II launch from?
Artemis II already flew: it launched on April 1, 2026, from Launch Complex 39B at Kennedy Space Center in Florida. It carried four astronauts, three from NASA… more…
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Moon and Mars
When is the Moon at last quarter?
When we see half the lunar disk lit up after the full moon, in the final stretch of a phase cycle that repeats every 29.5 days. NASA calls it the last quarter… more…
Moon and Mars
What is apollo 11 mission?
The first mission to land humans on the Moon's surface. It launched on July 16, 1969 at 13:32 UT aboard a Saturn V from Pad 39A; the lunar module Eagle landed… more…
Moon and Mars
How fast was Apollo 11 going?
NASA documents a specific figure: the command module Columbia entered Earth's atmosphere at 39,000 km/h (24,000 mph) on the way back from the Moon. About nine… more…
Moon and Mars
Why isn't Mars habitable?
Because its atmosphere is unbreathable and barely there: 95.1% carbon dioxide and an average surface pressure of just 6.36 mb. With so little atmosphere… more…
Moon and Mars
How does neil armstrong came back from moon?
In three stages. On July 21, 1969, the Eagle lifted off from the Moon at 17:54:01 UTC and docked with the Columbia at 21:34:00 UTC; on July 22, trans-Earth… more…
Moon and Mars
Where does the Moon never get light?
At the bottom of some polar craters, especially at the lunar south pole: these are permanently shadowed regions, covering about 3% of the south pole, and some… more…
Moon and Mars
How many Artemis missions are there?
NASA doesn't currently give a fixed number of Artemis missions, but official sources allow four to be counted. Artemis I flew uncrewed on November 16, 2022… more…
Richard Dorrell (CC BY SA), vía commons Moon and Mars
How does the moon affect the tides?
By pulling unevenly on it. Tidal forces vary inversely as the cube of the distance, so the near side of the Earth is tugged harder than the far side: one… more…
Moon and Mars
How old was Neil Armstrong when he walked on the Moon?
Neil Armstrong was 38 years old when he walked on the Moon. He was born on August 5, 1930, in Wapakoneta, Ohio, and set foot on the lunar surface on July 21… more…
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Moon and Mars
How much does Artemis II cost?
There's no official figure for Artemis II's cost: the GAO criticized NASA because neither its five-year rolling estimate nor its annual budget request break… more…
Moon and Mars
Why does NASA want to leave Earth?
NASA does not want to leave Earth: its Earth Science division operates more than 20 satellites whose data is freely available. Exploring beyond Earth is… more…
Moon and Mars
How many days did it take Apollo 11 to reach the Moon?
Four calendar days: Apollo 11 launched on July 16, 1969, at 13:32 UTC, and the Eagle landed on July 20 at 20:17:40 UTC, at 102 hours and 45 minutes into the… more…
Moon and Mars
Is it true that the Moon is moving away from Earth?
Yes. The Moon is moving away from Earth by about 3.8 centimeters a year. We know this because the Apollo 11 astronauts left a laser reflector on the surface… more…
Moon and Mars
How long does it take a rocket to get to Mars?
About 200 days, according to NASA, is the length of the interplanetary cruise phase on typical trajectories. And the trip can only begin when Earth and Mars… more…
Moon and Mars
How many rockets have reached the Moon?
No rocket reaches the Moon: what arrives is the spacecraft it launches. Counting crewed landings, the tally is that of the Apollo program, active between 1962… more…
Moon and Mars
Can Apollo 11 be seen from Earth?
Not with a telescope: the descent stage left behind in the Sea of Tranquility is too small for any ground-based instrument and had to be photographed from… more…
Moon and Mars
Who discovered the Moon?
No one: the Moon was never discovered, because it is visible to the naked eye and has accompanied humanity since the beginning. What does have an author and a… more…
Moon and Mars
How many Apollo missions landed on the Moon?
Six Apollo missions landed on the Moon: Apollo 11, 12, 14, 15, 16, and 17, between July 1969 and December 1972. On each one, two astronauts descended—twelve… more…
Foto: SpaceX (CC0) Moon and Mars
Why did falcon 9 hit the moon?
Because a spent upper stage on a lunar trajectory has no mission and no way to steer. A Falcon 9 upper stage from the January 2025 Firefly Blue Ghost 1 launch… more…
Moon and Mars
How much apollo 11 cost?
NASA never published a price for Apollo 11 on its own; what is documented is the program. The United States spent $25.8 billion on Project Apollo between 1960… more…
Moon and Mars
How much time neil armstrong spent on moon?
Armstrong and Aldrin spent 21 hours, 36 minutes on the Moon's surface, almost all of it inside the lunar module Eagle. Armstrong stepped onto the surface… more…
Moon and Mars
When is the Moon in its first quarter?
First quarter arrives when the Moon has traveled a quarter of its roughly 29.5-day phase cycle: it sits halfway between new moon and full moon, with half its… more…
Moon and Mars
When did Neil Armstrong set foot on the Moon?
Neil Armstrong set foot on the Moon at 02:56:15 UT on July 21, 1969, already early morning in Europe, with the Eagle lunar module having landed at 20:17:40 UT… more…
Moon and Mars
Who was Neil Armstrong?
Neil Armstrong (Ohio, August 5, 1930 – August 25, 2012) was a naval pilot in Korea, a research pilot for the X-15, and a NASA astronaut from 1962. He… more…
Moon and Mars
When will SpaceX go to Mars?
There's no date. No Starship has yet departed for Mars, and in February 2026 Elon Musk placed the priority on the Moon: a lunar city "in under 10 years"… more…
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Which Artemis mission lands on the Moon?
Artemis IV, planned for early 2028: two of its crew members will descend to the surface and spend about a week near the lunar south pole (as of October 2026)… more…
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Moon and Mars
What happens if a rocket crashes into the Moon?
It leaves a crater and little else. With no atmosphere to slow it down or carry a shockwave, the impact excavates the regolith and throws material in every… more…
Moon and Mars
How fast does the Moon rotate?
The Moon spins on itself very slowly: it takes 655.720 hours, that is 27.3217 days, practically the same time it takes to orbit Earth, which is why it always… more…
Moon and Mars
How does apollo 11 work?
By splitting the task between vehicles. A Saturn V sent the stack moonward with a translunar injection burn of 5 minutes, 48 seconds; Columbia waited in lunar… more…
Chapelle Musa 2 (CC BY SA), vía commons Moon and Mars
Can the Moon be seen during the day?
Yes, and it happens almost daily. The Moon is above the horizon both day and night; what changes is that during the day it competes with a lit-up sky. NASA… more…
European Space Agency (CC BY SA), vía commons Moon and Mars
How does the Moon block the Sun?
It's a coincidence of scale: the Moon is about 400 times smaller than the Sun, but it's also about 400 times closer to Earth, so both disks appear almost the… more…
Moon and Mars
Is it true that a rocket crashed into the Moon?
Yes. On March 4, 2022, an abandoned rocket stage hit the Moon near Hertzsprung crater, on the far side. NASA's LRO probe photographed the result: a double… more…
ESO/G. Brammer (CC BY), vía commons Moon and Mars
Can Artemis be seen from Earth?
With a telescope, yes; with the naked eye, no. On April 8, 2026, the Falcon telescope at UNSW Canberra Space recorded Orion as the Artemis II crew headed… more…
Moon and Mars
How fast does Artemis 2 land?
Artemis II didn't land: it splashed down. Orion hit the atmosphere at 400,000 ft traveling at 35 times the speed of sound and reached the water at about 20… more…
Moon and Mars
How long does Artemis 2 take to reach the Moon?
Five days from liftoff: Artemis II launched on April 1, 2026, and passed its closest point to the Moon on April 6, flight day six. The outbound leg after… more…
Moon and Mars
Who created Apollo 11?
It wasn't the work of one person. Apollo 11 was a NASA mission built by an industrial consortium: North American Rockwell built the command module Columbia… more…
Moon and Mars
What are neil armstrong's famous words?
He said: "That's one small step for (a) man; one giant leap for mankind." That's how the annotated transcript of the Apollo Lunar Surface Journal records it… more…
Moon and Mars
Why doesn't Mars have a magnetic field?
Because its core's dynamo shut down billions of years ago. Mars has no global magnetic field today, but parts of the southern hemisphere's crust are strongly… more…
Moon and Mars
How big is the Moon?
The Moon has an equatorial diameter of 3,476 km, less than a third of Earth's width, and a mean radius of 1,737.4 km. It orbits at an average distance of… more…
Moon and Mars
Why is the Moon a satellite?
Because it orbits a planet. For NASA, a satellite is any object that circles a planet, a star, or a moon, and the Moon circles Earth: it's its only natural… more…
Moon and Mars
What happens if Mars collides with Earth?
It can't happen on any human timescale: Mars's and Earth's orbits are separate and stable. The scenario only shows up in billion-year simulations — of more… more…
Moon and Mars
Is it true that Artemis 2 went to the Moon?
Yes, though without landing. Artemis II launched on April 1, 2026 from Kennedy and flew around the Moon with four crew members aboard Orion; it splashed down… more…
Moon and Mars
Why doesn't Artemis 2 land on the Moon?
Because it was a crewed test flight, not a landing mission. Artemis II carried four people around the Moon from April 1 to April 10, 2026, to verify that… more…
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Jimmy Baikovicius from Montevideo, Uruguay (CC BY SA), vía commons Moon and Mars
Why does the Moon turn red?
The Moon turns red when it enters Earth's shadow. During a total lunar eclipse, the only light reaching its surface has passed through the edge of our… more…
Moon and Mars
Did they really land on the Moon?
Yes, and not just once: six Apollo missions — 11, 12, 14, 15, 16 and 17 — landed between July 1969 and December 1972. Twelve people walked on the surface… more…
Moon and Mars
How long does Mars take to orbit the Sun?
Mars takes 686.980 Earth days to complete one orbit around the Sun, equivalent to 1.881 Earth years. Counted in Martian days, the year lasts 669.6 sols, which… more…
Moon and Mars
Why apollo 11 name?
After the Greek god Apollo and the mission's place in a renumbered sequence. Abe Silverstein, a NASA official, named the Mercury and Apollo programs. Eleven… more…
Moon and Mars
How fast does Mars rotate?
Mars rotates on its axis in 24.6229 hours relative to the stars; its solar day, the Martian sol, lasts 24.6597 hours, slightly longer than Earth's. Its axis… more…
Moon and Mars
Why isn't the Moon out?
The Moon rises every day, but not always at night: the time it rises shifts throughout the roughly 29.5-day phase cycle. At new moon it rises and sets almost… more…
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Moon and Mars
How long does it take a space shuttle to reach the Moon?
It never reached it and never could: the space shuttle was a low Earth orbit vehicle, designed for altitudes between 185 and 643 kilometers (115 to 400… more…
Moon and Mars
Why does artemis mean?
Artemis is the Greek goddess of the Moon and Apollo's twin sister: NASA announced that name on May 16, 2019, for its return-to-the-Moon program, successor to… more…
ESO/G. Lombardi (CC BY), vía commons Moon and Mars
How long does it take the Moon to orbit the Earth?
The Moon completes one orbit of Earth in 27.3217 days, its sidereal orbital period, measured against the stars. The cycle of phases we see from the ground… more…
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NASA, ESA, CSA, STScI, Mars JWST/GTO team (CC BY), vía commons Moon and Mars
Can Mars be seen from Earth?
Yes, with the naked eye and no instrument needed: Mars is recognizable as an orange-ish point that barely twinkles. Its brightness varies because the distance… more…
Moon and Mars
How much did neil armstrong get paid?
Nothing extra for the Moon. Armstrong flew as a civilian federal employee and was paid the salary of the post he held, with no per-flight fee; when NACA hired… more…
Moon and Mars
When do launches to the Moon take place?
There's no regular schedule: each trip launches within the window set by orbital mechanics. Apollo 11 departed on July 16, 1969, at 13:32 UTC, and the most… more…
Moon and Mars
How does neil armstrong look like?
The face most people picture is not his: the gold-visored astronaut in the famous Apollo 11 photograph is Buzz Aldrin, shot by Armstrong. Armstrong himself is… more…
Moon and Mars
Is it true that Mars has life?
There is no confirmed life on Mars: no mission has found an organism or conclusive proof (as of October 2026). There are clues, though: in September 2025 NASA… more…
Moon and Mars
How long does it take a rocket to reach the Moon?
Between eight hours and thirteen months, depending on the trajectory. New Horizons passed the Moon 8 hours and 35 minutes after launch; the Apollo missions… more…
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Moon and Mars
When does Artemis II reach the Moon?
Artemis II has already passed the Moon: its closest approach came on April 6, 2026, at 6,545 km (4,067 miles) above the lunar surface. It had launched on… more…
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