4034 Vishnu (1986 PA)
Composition: Platinum, and nickel-iron
Valuation: €213 Billion
Δv (km/s) Delta-velocity: 8.358
Upcoming Approaches to Earth: Aug 28, 2021: 0.221 AU. Aug 24, 2022: 0.314 AU. Oct 25, 2022: 0.334 AU. Jan 10, 2024: 0.404 AU. Apr 01, 2025: 0.157 AU.
Vishnu’s 2025 approach of 0.157 Astronomical Units is equivalent to 23,486,866 kilometers.
Closest approach of Earth from the Moon is 363104 kilometers. Closest distance of the Earth to Mars is 54,600,000 km.
1968, NASA’s Apollo 8, return mission to the Moon, lasted 6 days, 3 hours, and 42 seconds, crying 3 crew, with a landing mass of 4,979 kilograms.
1972, Apollo 17, NASA’s last moon mission of the 20th century, returned to Earth. The Apollo space missions had returned a total of 382 kg of extraterrestrial rock and soil back to Earth.
Asteroid date source: Asterank; based on multiple scientific sources, with details on orbits and basic physical parameters sourced from the Minor Planet Center and NASA JPL.
2017 “Goldman Sachs: space-mining for platinum is 'more realistic than perceived…
Prospecting probes can likely be built for tens of millions of dollars each and Caltech has suggested an asteroid-grabbing spacecraft could cost $2.6bn,’”