User LocalFluff

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16k

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Does a satellite naturally turn in phase with its orbit, always facing Earth?

Oct 30 '18 at 6:16 Community♦ 1

5

37

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7

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10k

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What are the most serious injuries that astronauts have suffered while in orbit?

crewed-spaceflight history astronauts health risk-management

Feb 26 '18 at 15:33 Community♦ 1

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1

answer

4k

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Is there a mockup of the ISS on the ground?

iss crewed-spaceflight simulation training facility

Apr 23 '17 at 16:28 Organic Marble 125k

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3

answers

4k

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What causes microgravity (i.e. non-zero gravity) in orbit?

microgravity gravity

Feb 23 '19 at 8:26 Hobbes 117k

5

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7

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8k

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Why weren't Saturn V and the Soviet N-1 Moon rockets made larger in order to simplify Lunar missions?

the-moon design mission-design saturn-v n-1

Dec 4 '18 at 11:59 Baldrickk 2,320

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9

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8k

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Can a satellite orbit Earth so that it always has the Moon in line of sight?

the-moon orbit communication-satellite earth

Oct 23 '14 at 7:06 Mark Pounds Jr. 1

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Could a spy satellite in orbit be recommissioned to do astronomy?

space-telescope earth-observation reconnaissance-satellite

Feb 18 '18 at 23:30 Community♦ 1

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7

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4k

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Why didn't the Apollo program do an uncrewed landing/ascent rehearsal?

apollo-program uncrewed-spaceflight crewed-spaceflight

Sep 22 '19 at 19:47 Uwe 34k

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How are EVA's in LEO affected by being at the night side of Earth?

iss low-earth-orbit eva

Feb 5 '16 at 15:01 Community♦ 1

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3

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Why are the very reliable rockets Atlas V and Ariane V not rated for human flight?

rockets crewed-spaceflight reliability human-rating

May 22 '19 at 9:43 PearsonArtPhoto♦ 108k

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4

answers

880

views

Could a rocket engine be designed to use different fuels? (Like LOX+H2, LOX+CH4)

engine-design fuel

May 30 '18 at 8:51 mpv 2,872

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How did the attitude system of the uncrewed Soyuz 7K-OK No.1 fail on the launch pad in 1966, killing ground staff as LES was activated?

attitude soyuz-spacecraft launch-escape-system failure soyuz-launcher

Feb 3 '19 at 11:46 Brian Tompsett - 汤莱恩 5,678

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Could the Soviets have rounded the Moon before Apollo? Why didn't they?

apollo-program history crewed-spaceflight russia space-race

Jun 12 '15 at 19:43 Nathan Tuggy 4,416

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6

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4k

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Could an Apollo crew have been killed by Solar radiation?

apollo-program radiation the-sun shielding

Nov 25 '19 at 12:15 Ludo 6,030

1

18

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3

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3k

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Could Hubble observe the night side of the Moon?

the-moon observation hubble lro

Jan 25 '19 at 3:06 Community♦ 1

2

18

votes

5

answers

1k

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Why won't JWST deploy in LEO where it is potentially serviceable?

low-earth-orbit lagrangian-points eva james-webb-telescope

Sep 23 '18 at 6:16 Evan Finch 21

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2

answers

5k

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Do the solid rocket boosters of the Shuttle and SLS have a self-destruct system and was it activated during the Challenger disaster?

space-shuttle sls solid-fuel abort self-destruct

Aug 6 '18 at 18:26 Community♦ 1

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4

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3k

views

How large could launchers become?

spacecraft-development launch-vehicle

Mar 24 '17 at 5:18 Community♦ 1

2

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1

answer

3k

views

Why design new rocket engines instead of using the existing types?

rockets engine-design engineering cost

Sep 12 '15 at 12:00 Community♦ 1

2

17

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1

answer

278

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When have secondary payloads damaged the primary payload of a launcher?

launch failure payload

Apr 26 '19 at 13:01 Community♦ 1

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2

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3k

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Why were the Sputniks launched to such high apogee?

orbital-mechanics history sputnik

Dec 13 '19 at 14:33 Sergiy Lenzion 5,827

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2k

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Could a spacecraft be made out of wood?

life astrobiology life-support design-alternative

Sep 29 '19 at 3:43 Magic Octopus Urn 8,871

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3

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1k

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Why do KSC crawler-transporters use caterpillar treads instead of rail tracks?

launch-site engineering launchpad operations kennedy-space-center

Jul 24 '19 at 21:08 DrSheldon 36.1k

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3

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2k

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What missions could be done with Orion on Falcon Heavy?

nasa spacex crewed-spaceflight orion-spacecraft falcon-heavy

Jul 20 '19 at 12:51 Daubrege Jean-marie 1

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3k

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Could the Apollo lunar ascent stage have separated from the descent stage before touchdown in an emergency?

apollo-program lunar-landing abort launch-escape-system

Jul 25 '18 at 11:26 Uwe 34k

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16

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answer

865

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When are there launch windows to Neptune via Jupiter?

orbital-mechanics jupiter gravity-assist neptune launch-window

Sep 9 '17 at 14:18 PearsonArtPhoto♦ 108k

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answer

2k

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How is the space station's interior cleaned?

iss health hygiene cleaning

Mar 18 '17 at 19:26 David Hammen 44k

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15

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Is it more challenging to put an airship in the Uranian than in the Venusian atmosphere?

atmosphere venus balloons neptune uranus

Sep 22 at 6:22 LazyReader 1

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4

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3k

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Why didn't Apollo land on the Lunar poles?

the-moon apollo-program lunar-landing isru

Sep 5 '19 at 6:32 DrSheldon 36.1k

15

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3

answers

645

views

Will or could the Parker Solar Probe do science at Venus?

probe venus payload the-sun parker-solar-probe

Oct 6 '18 at 22:59 Community♦ 1

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284 Questions

Does a satellite naturally turn in phase with its orbit, always facing Earth?

What are the most serious injuries that astronauts have suffered while in orbit?

Is there a mockup of the ISS on the ground?

What causes microgravity (i.e. non-zero gravity) in orbit?

Why weren't Saturn V and the Soviet N-1 Moon rockets made larger in order to simplify Lunar missions?

Can a satellite orbit Earth so that it always has the Moon in line of sight?

Could a spy satellite in orbit be recommissioned to do astronomy?

Why didn't the Apollo program do an uncrewed landing/ascent rehearsal?

How are EVA's in LEO affected by being at the night side of Earth?

Why are the very reliable rockets Atlas V and Ariane V not rated for human flight?

Could a rocket engine be designed to use different fuels? (Like LOX+H2, LOX+CH4)

How did the attitude system of the uncrewed Soyuz 7K-OK No.1 fail on the launch pad in 1966, killing ground staff as LES was activated?

Could the Soviets have rounded the Moon before Apollo? Why didn't they?

Could an Apollo crew have been killed by Solar radiation?

Could Hubble observe the night side of the Moon?

Why won't JWST deploy in LEO where it is potentially serviceable?

Do the solid rocket boosters of the Shuttle and SLS have a self-destruct system and was it activated during the Challenger disaster?

How large could launchers become?

Why design new rocket engines instead of using the existing types?

When have secondary payloads damaged the primary payload of a launcher?

Why were the Sputniks launched to such high apogee?

Could a spacecraft be made out of wood?

Why do KSC crawler-transporters use caterpillar treads instead of rail tracks?

What missions could be done with Orion on Falcon Heavy?

Could the Apollo lunar ascent stage have separated from the descent stage before touchdown in an emergency?

When are there launch windows to Neptune via Jupiter?

How is the space station's interior cleaned?

Is it more challenging to put an airship in the Uranian than in the Venusian atmosphere?

Why didn't Apollo land on the Lunar poles?

Will or could the Parker Solar Probe do science at Venus?