User uhoh

18 votes

3 answers

24k views

How to calculate delta-v required for a planet-to-planet Hohmann transfer?

Joe

3,950

asked Aug 20, 2013 at 7:55

17 votes

2 answers

11k views

How to calculate Delta V for lunar flyby

AlanSE

16.1k

asked Sep 23, 2013 at 14:08

17 votes

1 answer

2k views

What are these enclosed regions on the Mission Control Center map?

James Thorpe

1,285

asked Dec 30, 2015 at 16:06

17 votes

5 answers

23k views

Cubesat Launch Costs

Kuldeep Barad

1,782

asked Feb 2, 2017 at 20:42

17 votes

1 answer

5k views

What are quaternions and how are they used to represent spacecraft dynamics?

David Hammen

65.9k

asked Dec 11, 2016 at 12:23

17 votes

4 answers

19k views

Why are photos of satellites most often computer generated?

blarg

311

asked Mar 13, 2014 at 12:45

17 votes

1 answer

1k views

Is the difference in orbital velocity of different parts measurable on board the ISS?

choeger

2,403

asked Jul 13, 2016 at 21:26

17 votes

2 answers

3k views

Why did Sputnik 1 have four antennas?

Elijah Seed Arita

277

asked Oct 14, 2016 at 4:24

16 votes

3 answers

520 views

How would time measurement be done over great distances?

Burkhard

303

asked Sep 21, 2013 at 21:30

16 votes

2 answers

2k views

What software can be used to determine deep-space trajectories?

Jerard Puckett

7,411

asked Feb 11, 2014 at 15:27

16 votes

3 answers

442 views

How is RF spectrum usage coordinated in Mars orbit?

Eric Urban

667

asked Oct 25, 2016 at 12:55

16 votes

2 answers

5k views

Why did the Space Shuttles perform a rollover maneuver during launch?

McCoy Pauley

365

asked Sep 16, 2015 at 10:13

16 votes

3 answers

14k views

Can you swim in space?

Zibbobz

262

asked Feb 9, 2015 at 12:51

16 votes

1 answer

653 views

What are the differences in technology between OSIRIS-REx and Hayabusa missions?

Mark777

2,107

asked Sep 13, 2016 at 14:32

16 votes

4 answers

14k views

Why do so few satellites pass over the poles, and why do so many focus on the equator?

Wad Cheber

504

asked Jul 9, 2016 at 16:39

16 votes

2 answers

5k views

How are GPS satellite clocks synchronized with each other in the earth's frame of reference?

Ameet Sharma

263

asked Mar 7, 2016 at 14:13

16 votes

2 answers

2k views

Is the Falcon Heavy booster much simpler to land than the Falcon 9 first stage?

choeger

2,403

asked May 10, 2016 at 9:22

16 votes

1 answer

755 views

What would have been the absolute maximum LEO payload of a two-stage Saturn V?

Alastair Haslam

1,125

asked Apr 5, 2016 at 6:09

16 votes

5 answers

2k views

Jurisdiction over crime in space

Tomislav Muic

1,665

asked Jul 23, 2013 at 21:01

16 votes

1 answer

578 views

Is radiation dose from cosmic rays higher behind 50 cm of shielding, or lower?

kim holder

20.9k

asked Mar 29, 2017 at 18:27

16 votes

3 answers

2k views

Why would a mission to Sun-Earth L1 have an instantaneous launch window?

Nate Barbettini

763

asked Feb 9, 2015 at 18:43

15 votes

2 answers

2k views

Can the satellites in Martian orbit be put to use providing a rudimentary GPS system on Mars?

Everyone

13.6k

asked Sep 29, 2014 at 19:26

15 votes

1 answer

716 views

What amendments were made to the Outer Space Treaty?

Everyone

13.6k

asked Sep 3, 2013 at 18:25

15 votes

2 answers

31k views

Calculating solar system escape and and sun-dive delta V from lower Earth orbit

Gerald

996

asked Feb 6, 2014 at 12:53

15 votes

1 answer

928 views

How did Goddard's rocket reach 41 feet altitude in under 2.5 seconds?

Russell Borogove

162k

asked Aug 21, 2014 at 14:18

15 votes

3 answers

2k views

Cubesats in lunar orbit and beyond - how does communication work?

s-m-e

6,561

asked Jul 22, 2013 at 10:58

15 votes

6 answers

26k views

Can an artificial satellite stay in orbit forever?

tlehman

253

asked Oct 10, 2014 at 23:11

15 votes

2 answers

2k views

How were vibrations supposed to be handled in an Ares I?

s-m-e

6,561

asked Aug 23, 2013 at 16:31

15 votes

2 answers

6k views

Are rocket exhaust flames ever opaque?

Anthony X

17.2k

asked Jan 10, 2015 at 20:38

15 votes

2 answers

1k views

If we could send an orbiter to the Pluto-Charon system, could we put it in a stable orbit?

kim holder

20.9k

asked Mar 9, 2016 at 23:33

Stack Exchange Network

539 Bookmarks

How to calculate delta-v required for a planet-to-planet Hohmann transfer?

How to calculate Delta V for lunar flyby

What are these enclosed regions on the Mission Control Center map?

Cubesat Launch Costs

What are quaternions and how are they used to represent spacecraft dynamics?

Why are photos of satellites most often computer generated?

Is the difference in orbital velocity of different parts measurable on board the ISS?

Why did Sputnik 1 have four antennas?

How would time measurement be done over great distances?

What software can be used to determine deep-space trajectories?

How is RF spectrum usage coordinated in Mars orbit?

Why did the Space Shuttles perform a rollover maneuver during launch?

Can you swim in space?

What are the differences in technology between OSIRIS-REx and Hayabusa missions?

Why do so few satellites pass over the poles, and why do so many focus on the equator?

How are GPS satellite clocks synchronized with each other in the earth's frame of reference?

Is the Falcon Heavy booster much simpler to land than the Falcon 9 first stage?

What would have been the absolute maximum LEO payload of a two-stage Saturn V?

Jurisdiction over crime in space

Is radiation dose from cosmic rays higher behind 50 cm of shielding, or lower?

Why would a mission to Sun-Earth L1 have an instantaneous launch window?

Can the satellites in Martian orbit be put to use providing a rudimentary GPS system on Mars?

What amendments were made to the Outer Space Treaty?

Calculating solar system escape and and sun-dive delta V from lower Earth orbit

How did Goddard's rocket reach 41 feet altitude in under 2.5 seconds?

Cubesats in lunar orbit and beyond - how does communication work?

Can an artificial satellite stay in orbit forever?

How were vibrations supposed to be handled in an Ares I?

Are rocket exhaust flames ever opaque?

If we could send an orbiter to the Pluto-Charon system, could we put it in a stable orbit?