User Sean Raymond

83 votes

Accepted

Can two adjacent, life-sustaining planets orbit a star such that they are rarely near each other?

answered Dec 12, 2017 at 18:14

24 votes

Accepted

How critical is it for life that a planet remains within the habitable zone at all times?

answered Dec 14, 2017 at 8:47

24 votes

Accepted

Why didn't we detect that exoplanet before?

answered Dec 5, 2017 at 13:12

15 votes

What would the effect be on Earth if Mars disappeared?

answered Aug 3, 2016 at 21:05

14 votes

What would the effect be on Earth if Mars disappeared?

answered Aug 3, 2016 at 15:26

12 votes

Can 3 planets rotate around each other like this?

answered Sep 1, 2016 at 19:40

11 votes

Accepted

Is my Solar System scientifcally possible?

answered Dec 19, 2017 at 8:52

10 votes

An Eden-like moon orbits a barren terrestrial planet. Why is the planet barren while its moon is earthlike?

answered Aug 30, 2018 at 7:54

10 votes

Would life still be possible on Earth if its atmosphere suddenly became as dense as the Venusian?

answered Jul 5, 2016 at 9:58

9 votes

What would block a planet from seeing the stars?

answered Jun 27, 2016 at 18:30

9 votes

Details needed for day cycle of lunar world orbiting a gas giant

answered Nov 27, 2017 at 11:18

7 votes

Artificial gravity and inertia negation

answered May 31, 2016 at 13:00

6 votes

How could Life develop on a planets with 9 year days

answered Jun 6, 2016 at 8:10

6 votes

a habitable planet orbiting a Neutron Star that moves through galaxies

answered May 31, 2016 at 8:24

6 votes

Hottest possible terrestrial planet

answered May 31, 2016 at 10:01

6 votes

How to make an Earth with 27 suns work

answered May 12, 2018 at 13:17

6 votes

Accepted

If Venus were at .85 AU, Earth at 1.1 AU, and Mars at 1.4 AU from the Sun, would they disrupt each other's orbits at conjunction?

answered Sep 22, 2022 at 12:37

5 votes

Accepted

System consisting of a Super Jupiter (10 Jupiter Masses) and several earth-like moons

answered Aug 17, 2018 at 13:03

5 votes

Life in the water/snow line of a protoplanetary accretion disc?

answered Mar 29, 2018 at 20:48

5 votes

Proxima Centauri and tidally locked planets

answered Aug 26, 2016 at 18:06

5 votes

Accepted

Heavy metal planets in a globular cluster

answered Jul 1, 2016 at 14:47

5 votes

Maximum amount of habitable moons possible around this Jovian planet?

answered Jul 19, 2016 at 14:58

4 votes

What would Earth tides look like if the Moon was in a polar orbit (instead of an equatorial orbit)?

answered Aug 9, 2016 at 14:11

4 votes

Reality Check: Habitable moon around earth-like planet

answered Aug 11, 2016 at 11:02

4 votes

Could this complex star system work in real life?

answered Jul 8, 2016 at 9:59

3 votes

Time, place and "look" on tidally locked planet?

answered May 31, 2016 at 8:44

3 votes

Seasons and Day/Night Cycles on Horseshoe Habitable Worlds?

answered May 31, 2016 at 19:49

3 votes

About how many planets are plausible for this binary-star system?

answered Jul 26, 2016 at 15:25

3 votes

What would a planet with no moon look like?

answered Jul 7, 2016 at 12:14

3 votes

Could a solar system with large amounts of dust and debris exist?

answered Aug 26, 2016 at 14:01

Stack Exchange Network

62 Answers

Can two adjacent, life-sustaining planets orbit a star such that they are rarely near each other?

How critical is it for life that a planet remains within the habitable zone at all times?

Why didn't we detect that exoplanet before?

What would the effect be on Earth if Mars disappeared?

What would the effect be on Earth if Mars disappeared?

Can 3 planets rotate around each other like this?

Is my Solar System scientifcally possible?

An Eden-like moon orbits a barren terrestrial planet. Why is the planet barren while its moon is earthlike?

Would life still be possible on Earth if its atmosphere suddenly became as dense as the Venusian?

What would block a planet from seeing the stars?

Details needed for day cycle of lunar world orbiting a gas giant

Artificial gravity and inertia negation

How could Life develop on a planets with 9 year days

a habitable planet orbiting a Neutron Star that moves through galaxies

Hottest possible terrestrial planet

How to make an Earth with 27 suns work

If Venus were at .85 AU, Earth at 1.1 AU, and Mars at 1.4 AU from the Sun, would they disrupt each other's orbits at conjunction?

System consisting of a Super Jupiter (10 Jupiter Masses) and several earth-like moons

Life in the water/snow line of a protoplanetary accretion disc?

Proxima Centauri and tidally locked planets

Heavy metal planets in a globular cluster

Maximum amount of habitable moons possible around this Jovian planet?

What would Earth tides look like if the Moon was in a polar orbit (instead of an equatorial orbit)?

Reality Check: Habitable moon around earth-like planet

Could this complex star system work in real life?

Time, place and "look" on tidally locked planet?

Seasons and Day/Night Cycles on Horseshoe Habitable Worlds?

About how many planets are plausible for this binary-star system?

What would a planet with no moon look like?

Could a solar system with large amounts of dust and debris exist?