Linked Questions

28 votes
3 answers
5k views

How will DART be able to hit a 170 meter rock dead-center at over 6000 m/s? What technologies will be use and how will they work together?

The DART spacecraft will ultimately be a kinetic energy impactor, using its 500 kg mass at a relative velocity of over 6000 m/s to slightly change its target 65803 Didymos's companion Dimorphos's ...
uhoh's user avatar
  • 149k
22 votes
2 answers
3k views

Where are the upper stages for the Voyager/Pioneer stages?

I was reading this question, and was trying to remember an article I read many years ago. It seemed the article was indicating that there is a chance that one of the boosters from one of these ...
PearsonArtPhoto's user avatar
  • 121k
9 votes
3 answers
3k views

How close would the Tesla Roadster with Starman have to get to Earth in order to become attracted and fall on Earth?

In 2091 the Tesla Roadster is said to maybe get closer to Earth than the Moon is. At Starman's current speed, would its location in 2091 be sufficient for the Earth to re-attract the Starman to let it ...
user avatar
6 votes
4 answers
889 views

The plane of the orbit of Juno around Jupiter is not the ecliptic plane. How did it get into this plane?

Did Juno start off its course on the ecliptic plane from the earth orbit and then left it at insertion to Jupiter's orbit over its north pole or it was always in that plane?
kamran's user avatar
  • 265
14 votes
3 answers
697 views

Do all dangerous asteroids first pass through keyholes?

Scitech Daily's MIT Engineers Devise the Best Way to Deflect an Incoming Planet-Killer Asteroid Now MIT researchers have devised a framework for deciding which type of mission would be most ...
uhoh's user avatar
  • 149k
4 votes
3 answers
2k views

What's the planetary exploration word for "impact parameter" (distance of closest approach if gravity were "turned off")?

In particle scattering there's a term called "impact parameter", which is the minimum distance a particle would pass a second particle at rest, if the attractive or repulsive force were ignored or "...
uhoh's user avatar
  • 149k
6 votes
1 answer
628 views

Understanding gravitational keyhole analysis for Near-Earth Objects

I've been studying the resonant return and gravitational keyhole analysis for NEOs and using the extension of Öpik's theory of close encounters (aka Öpik-Valsecchi theory, Valsecchi et al., Astron ...
Astroynamicist's user avatar
4 votes
1 answer
466 views

Chandrayaan-2; time taken to get to the Moon

Depicted above is the print version of the July 02, 2019 Times of India article Why the world keeps returning to Chandamama which nicely surveys the large number of missions to the Moon. India is ...
Aditya Jain's user avatar
2 votes
1 answer
344 views

Deep space marksmanship; will DART's intercept and impact trajectory represent the best ever if successful? If so, by how much?

The DART spacecraft will ultimately be a kinetic energy impactor, using its 500 kg mass at a relative velocity of over 6000 m/s to slightly change its target 65803 Didymos's companion Dimorphos's ...
uhoh's user avatar
  • 149k
2 votes
0 answers
106 views

Where can I find the specific details of a gravity assist space mission?

0 I am writing a research essay where I need to know the specific details of a gravity assist mission such as Voyager 2's flyby of Jupiter for example (but any mission would work as long as it is a ...
Alexander Ivanov's user avatar