‘Oumuamua points to plethora of interstellar objects

'Oumuamua

An artist’s conception shows what the interstellar asteroid ‘Oumuamua might look like. (ESO Illustration / M. Kornmesser)

The cigar-shaped object known as ‘Oumuamua may be the first interstellar interloper to be discovered, but it’s not likely to be the last. Statistics suggest that there are lots more space rocks like it out there.

How many? About 100 septillion in our Milky Way galaxy, according to Yale astronomer Gregory Laughlin, who has analyzed the light curve and weird orbit of ‘Oumuamua — a Hawaiian word that basically means “first messenger from afar.”

That number is a 1 followed by 26 zeroes.

Laughlin arrived at that estimate by extrapolating from the observational capabilities of the Pan-STARRS Telescope in Hawaii, the instrument that first detected the object back in October 2017.

Get the full story on GeekWire.

About Alan Boyle

Award-winning science writer, creator of Cosmic Log, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.
This entry was posted in GeekWire and tagged , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.