Realizr

The yes of Know

45 notes

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

410 notes

peterdwebb:

God gives enough strength for each day. Just like the manna in the wilderness, He supplies each day one at a time. Keep going back to Him for sustenance. Don’t feel like you have what it takes to get through next week? You probably don’t. But God will provide.

(via peterdwebb)

23 notes

‘I cannot persuade myself that without love to others, and without, as far as rests with me, peaceableness towards all, I can be called a worthy servant of Jesus Christ.’
Saint Basil the Great (via theorthodoxbritreturns)