Linked Questions

89 votes
4 answers
24k views

Why destroy Juno at the end of the mission?

As follows from the mission timeline: Launch - August 5, 2011 Deep Space Maneuvers - August/September 2012 Earth flyby gravity assist - October 2013 Jupiter arrival - July 2016 Spacecraft will orbit ...
Creative Magic's user avatar
47 votes
8 answers
13k views

What would be the (most difficult) challenge to make a 10,000 year satellite?

Update: Bezos' recent Tweeted update on the 10,000 year clock. Also see The Verge's Construction begins on Jeff Bezos’ $42 million 10,000-year clock The discussions associated with the question Can ...
uhoh's user avatar
  • 149k
32 votes
4 answers
7k views

Is it possible to track an object as small as the Tesla Roadster around the Solar System

I have heard that we will soon lose track of the Tesla Roadster launched with the Falcon Heavy test launch. Yet, we know where Voyager is out beyond the Solar System and we followed other satellites ...
Dan Sorensen's user avatar
  • 3,551
12 votes
3 answers
4k views

Will the Tesla Roadster return any telemetry?

Is there any equipment fitted to the Tesla Roadster to send signals back to Earth, even for a short time after launch?
Dave Gremlin's user avatar
  • 2,891
12 votes
4 answers
893 views

Why was the 100m Green Bank dish needed together with DSN's 70m Goldstone dish to detect Chandrayaan-1 in lunar orbit?

The Phys.org article New NASA radar technique finds lost lunar spacecraft describes the use of radar to relocate two spacecraft that were in orbit around the moon but who's orbit had not been actively ...
uhoh's user avatar
  • 149k
12 votes
1 answer
29k views

Current position of Starman

Have looked at current videos of Starman and not found data as to it's current position. Is there a site plotting the current position of Starman?
Ted Lawson's user avatar
11 votes
2 answers
3k views

For how long/far can we track Starman

Radar tracking is used for Earth satellites and big enough asteroids. As the FH-launched Tesla Roadster is leaving the Earth-Moon system and it is quite small object (the car + the payload adapter are ...
jkavalik's user avatar
  • 5,128
8 votes
1 answer
2k views

What are these structures on the Lunar Ranging Retro Reflector (LRRR) arrays for?

In Local expansion measured, near zero via Lunar Ranging - what about deep space probes? I used images of the retro-reflector arrays that were left on the moon by Apollo 11, 14, and 15. The Lunar ...
uhoh's user avatar
  • 149k
16 votes
1 answer
954 views

What will J002E3 be like on its return?

J002E3 is believed to be the S-IVB third stage of the Apollo 12 rocket. It is expected to return to temporary Earth orbit in the 2040's. If some enterprising soul decided to build a rocket capable ...
Baldrickk's user avatar
  • 2,426
6 votes
1 answer
575 views

How are precision trajectory measurements made of trans-Neptunian spacecraft?

This question asks if Voyager suddenly encountered unexpected gravity from an unseen object, how would it be detected, and there are several answers. For the farthest probes - those now farther from ...
uhoh's user avatar
  • 149k
5 votes
1 answer
369 views

How could tiny Hagoromo have been seen visually from earth confirming its lunar orbit?

I saw the following sentence in The Space Review, and became intrigued: Japan’s Hagoromo lunar orbiter, deployed in 1990, reached orbit but ceased transmitting enroute. If it ceasted transmitting ...
uhoh's user avatar
  • 149k
1 vote
1 answer
119 views

How could tiny nanosatellite Hagoromo with a 4 kg solid propellant rocket inside maintain attitude control?

To the question Hagoromo was a ~36cm nano satellite that was deployed by Hiten while Hiten was in a highly elliptical orbit around the earth, in 1990. From there, Hagoromo was able to enter into an ...
uhoh's user avatar
  • 149k
1 vote
1 answer
155 views

Was Hagoromo's capture into lunar orbit ballistic capture or more propulsive?

Hagoromo was a ~36cm nano satellite that was deployed by Hiten while Hiten was in a highly elliptical orbit around the earth, in 1990. From there, Hagoromo was able to enter into an orbit around the ...
uhoh's user avatar
  • 149k
2 votes
1 answer
131 views

How did this upper stage end up on a collision course with the moon?

The upper stage of the Falcon 9 rocket that launched the DSCOVR spacecraft is expected to accidentally crash into the moon soon. How did it get into this position? I found answers here that say it was,...
Fred Larson's user avatar