Space Is So Big, Even Speed-Of-Light Messaging Can Seem Slow

Space is really, really big — and there's no way to get messages across it any faster.
SMS
Space Is So Big, Even Speed-Of-Light Messaging Can Seem Slow

These days, communication happens at the speed of light — literally as fast as possible. But space is so big, even speed-of-light messages seem slow.

Talking with space station crew in low Earth orbit takes about a second.

SEE MORE: New Horizons Flyby Will Shed Light On Pluto's Mysteries

When Apollo astronauts landed on the moon, round-trip communications were delayed by 2.7 seconds.

Getting a response from Mars probes can take as long as 48 minutes.

Juno, in orbit around Jupiter? One hour, 36 minutes round-trip.

When New Horizons flew by Pluto, the delay was close to nine hours.

And talking to Voyager I — the most distant human-made object in the universe — now takes more than 37 hours.

Featured Stories
Daniel Kaluuya in "Get Out" movie

Jordan Peele's 'Get Out' Takes Critics And The Box Office By Storm

Jeff Sessions

Democrats And Republicans Want Russia Probe — Without Jeff Sessions

Sybrina Fulton and Tracy Martin speaking to Mary Mitchell about their new book.

5 Years After His Death, Trayvon Martin's Parents Speak Out

Want to see more stories like this?
Like Newsy on Facebook for More Space Coverage