Frame & Fact

Welcome to Frame & Fact. Every day: one jaw-dropping space or science fact, told cinematically, with the number that makes it real. Starter: about 1,000 muons from cosmic-ray showers ~15 km up pass through you every minute. You never feel a thing. Follow for tomorrow's.

The Sun's surface is about 5,500°C. Its outer atmosphere, the corona, is over 1 million °C, hundreds of times hotter, and scientists still argue about why. NASA's Parker Solar Probe has flown through it at about 690,000 km/h, the fastest object humans have ever built.

A single day on the Moon lasts about 29.5 Earth days: roughly two weeks of sunlight, then two weeks of night. The ground swings from about +120°C at lunar noon to about -130°C at midnight (NASA). Which would you rather survive: lunar noon or lunar midnight?

Some of the water in your glass is older than the Sun. A 2014 study in Science estimated that up to half of Earth's water formed as interstellar ice before our Sun was born, 4.6 billion years ago. You drink ancient space ice every day.

Voyager 1 is the farthest human-made object, racing out at ~61,000 km/h. Even so, NASA estimates it needs ~300 years just to reach the inner edge of the Oort Cloud, and ~30,000 years to pass through it. Our Solar System is far bigger than it looks.

Space starts about 100 km above your head. That's closer than Delhi is to Agra (~200 km by road). If you could drive straight up at highway speed, you'd reach space in about an hour.

Halley's Comet turned around in December 2023. At ~35x Earth's distance from the Sun, beyond Neptune's orbit, it reached its farthest point and started falling back toward us. It's already on its way. Arrival: July 2061.

Right now, astronauts on the Space Station are moving at about 28,000 km/h. At that speed you'd cover Delhi to Mumbai (~1,150 km) in about 2.5 minutes, and the whole planet in roughly 90.

If you could see Jupiter's magnetic field from Earth, it would look bigger than the full Moon in our night sky. The bubble it carves in the solar wind stretches millions of km, and its tail reaches past Saturn's orbit. The biggest structure in the solar system you'll never see.

A dead star the size of a city spins 716 times every second. Pulsar PSR J1748-2446ad packs more mass than our Sun into a ball roughly 30 km across, and its surface whips around at about a quarter of the speed of light. It's the fastest-spinning neutron star ever found.

On Saturn's moon Titan, you could fly. The air at the surface presses about 1.5x harder than Earth's, and gravity is only ~14% of ours. Strap wings to your arms, flap, and you'd lift off. The catch: it's about -179 °C.

Mars is slowly pulling its moon Phobos in, by about 1.8 metres every 100 years. In roughly 30 to 50 million years, Phobos will either crash into Mars or be torn apart into a ring. Mars may get rings, just like Saturn.

Saturn's moon Enceladus is only about 500 km wide. Yet it sprays roughly 200 kg of water vapour into space every second, from cracks near its south pole. NASA's Cassini flew straight through those plumes. The water comes from a salty ocean hidden under the ice.

Right now, a wind from the Sun is blowing past Earth at about 400 km per second. That's roughly 1.4 million km/h. You never feel it because Earth's magnetic field deflects almost all of it. Where a little leaks in near the poles, the sky lights up as aurora.

Space is silent, right? Mostly. In the Perseus galaxy cluster, ~250 million light-years away, a black hole pushes pressure waves through hot gas. NASA's Chandra measured the note: a B-flat 57 octaves below middle C. Would you want to hear it?

In 9 days, Voyager 1 becomes the first human-made object ever to reach one light-day from Earth: about 25.9 billion km. A command sent from Earth will take a full 24 hours to reach it. The reply takes another 24. Launched in 1977. Still talking to us.

Everything you can touch — stars, planets, you — is only about 5% of the universe. Dark matter ~27%. Dark energy ~68%. Most of reality is invisible. (Planck/NASA) Did you know you were that rare? #space #science