oupacademic
oupacademic:

Very Short Fact: On this day in 2003, Mars makes its closest approach to Earth in nearly 60,000 years, passing 34,646,418 miles (55,758,005 km) distant.

The planets and their mutual gravitational pulls are continuously changing configuration. Chaos theory says it is therefore impossible to predict planetary positions more than a few million years ahead. However, it can be shown that the Solar System is sufficiently stable that no planet is likely to collide or be ejected in the next few billion years. We are probably safe for at least 5 billion years, which is when astronomers expect the Sun to swell up into a red giant, whereupon the wanderings of Mars will be the least of the problems faced by any far future Earthlings.

[p. 23, 24, Planets: A Very Short Introduction, by David A. Rothery]
Like the Very Short Introductions on Facebook for more from the series.
NASA Mars landing gif via giphy.com

oupacademic:

Very Short Fact: On this day in 2003, Mars makes its closest approach to Earth in nearly 60,000 years, passing 34,646,418 miles (55,758,005 km) distant.

The planets and their mutual gravitational pulls are continuously changing configuration. Chaos theory says it is therefore impossible to predict planetary positions more than a few million years ahead. However, it can be shown that the Solar System is sufficiently stable that no planet is likely to collide or be ejected in the next few billion years. We are probably safe for at least 5 billion years, which is when astronomers expect the Sun to swell up into a red giant, whereupon the wanderings of Mars will be the least of the problems faced by any far future Earthlings.

[p. 23, 24, Planets: A Very Short Introduction, by David A. Rothery]

Like the Very Short Introductions on Facebook for more from the series.

NASA Mars landing gif via giphy.com

jaimelannister

HAND IN HAND WE ROAM “I’d choose you. In a hundred lifetimes, in a hundred worlds, in any version of reality, I’d find you and I’d choose you.”

// a mix for detached lovers joined by the harmonized beating of their poisoned hearts. to those who long for each other like paramours separated by life and death, and those whose touch ignites the blood in your veins and imprints the touch of a melancholic ghost on your skin; we need each other like a wolf needs a sheep: to slaughter and devour whole. {listen} {download & how to}