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Astronaut experience documentaries

Submitted by ThereB4Death t3_z5ht2w on November 26, 2022 at 9:00 PM

20 comments

What if a probe is sent to C/2022 E3 to drop a cache of human civilization on it?

Submitted by cyberanakinvader t3_10bxe6u on January 14, 2023 at 7:43 PM

16 comments

"Speed up" terraforming of Mars by using Enceladus' icy crust?

Submitted by LumberjackWeezy t3_zw4bdo on December 27, 2022 at 2:35 AM

29 comments

Former Canadian Minister for Defence Paul Hellier unequivocally discloses the existence of aliens before cabinet.

Submitted by sargecitrus t3_zyk0z8 on December 29, 2022 at 11:25 PM

23 comments

How Bright is Space from Low Earth Orbit?

Submitted by ConfidentLo t3_yeh7v5 on October 27, 2022 at 3:24 AM

15 comments

Do any of you experience this?

Submitted by cherrypinkish t3_1269r6v on March 30, 2023 at 3:15 AM

16 comments

How does time dilation affect our observations of very distant objects, considering the expansion of the fabric of the universe is causing them to become more and more distant?

Submitted by HunkyMump t3_11ecs0b on February 28, 2023 at 4:21 PM

13 comments

Sending a signal faster than light is time travel?

Submitted by KingOfTNT10 t3_10mq4my on January 27, 2023 at 5:11 PM

56 comments

What is your favorite constellation?

Submitted by pete_999 t3_yxlpt6 on November 17, 2022 at 9:23 AM

37 comments

Biggest star compared to our sun.

Submitted by Born-Promotion-5977 t3_xsk1sx on October 1, 2022 at 2:47 AM

8 comments

What are some good sources I can use when finding out why the rocket fuel and exhaust particles separate during launch in the upper atmosphere causing that bright "bulb" of light?

Submitted by redditslayer95 t3_11khnn0 on March 6, 2023 at 11:19 PM

9 comments

NASA Seeks (College) Student Solutions for Managing Moon Landing Dust Cloud.

nasa.gov

Submitted by Aeromarine_eng t3_1203ysp on March 24, 2023 at 12:59 AM

11 comments

It’s a crime against humanity that we don’t have a live feed telescope in space.

Submitted by Timetraveler01110101 t3_10esood on January 18, 2023 at 12:29 AM

20 comments

How many years do you think we have until space travel? Something like cowboy bebop

Submitted by Aware_Ad2047 t3_10k5ok2 on January 24, 2023 at 1:38 PM

76 comments

Helium-3

Submitted by fangedrandy t3_103oe75 on January 5, 2023 at 3:36 AM

28 comments

Do Oort clouds of other star systems ever “intersect?”

Submitted by 8005T34 t3_zvhyi3 on December 26, 2022 at 7:37 AM

9 comments

Moons of jupiter

Submitted by SundaeThat6683 t3_zz12kx on December 30, 2022 at 1:53 PM

10 comments

Apollo role manoeuvre

Submitted by Oncey1234 t3_zxqq15 on December 29, 2022 at 12:51 AM

16 comments

What would space travel look like from the ship’s perspective?

Submitted by FaceFirst23 t3_yuwh4m on November 14, 2022 at 11:27 AM

19 comments

Green Shooting star

Submitted by Adventurous-Chef221 t3_yp83f3 on November 8, 2022 at 2:05 AM

18 comments

How many different companies now have built a rocket and used it to deliver anything or people to space (besides government organizations like NASA and the Russian equivalent)?

Submitted by Courcy6185 t3_yvyci3 on November 15, 2022 at 2:11 PM

20 comments

Spacetime is not fundamental | Donald Hoffman

iai.tv

Submitted by whoamisri t3_yewl06 on October 27, 2022 at 4:37 PM

15 comments

I have forgotten something. There are objects that follow in Jupiter's orbit around the sun. Not moons, but asteroid satellites that follow behind and in front. What are they called? I had thought it was Jovian Satellites but that seems to just mean moon.

Submitted by EmpiricalBreakfast t3_y3kqxg on October 14, 2022 at 5:09 AM

13 comments

What were the initial reactions to the Hubble Space Telescope's first images?

Submitted by DisastrousDLC t3_xto34b on October 2, 2022 at 12:53 PM

8 comments

what will actually happen when we finally collide with Andromeda?

Submitted by Wardog_Razgriz30 t3_122uaic on March 26, 2023 at 6:03 PM

41 comments