1. Home
  2. Education
  3. Space / Astronomy

On This Date in History - February 18

by Nick Greene
for About.com

Pluto

Pluto

NASA

Daily Extra :

Astronomy & Space Fact

Flatfish (halibut, flounder, turbot, and sole) hatch like any other "normal" fish. As they grow, they turn sideways and one eye moves around so they have two eyes on the side that faces up.

Who Was Born Today?:

1677: Jacques Cassini, French astronomer, rings of Saturn
1930: Theodore C. Freeman, Haverford Penn, capt USAF/astronaut

Who Died Today?:

1966: Grigori Grigoyevich Nelyubov, Russian cosmonaut, age 31

Today in History:

1930: US astronomer Clyde Tombaugh discovers Pluto. Originally considered the ninth planet of our solar system, in August of 2006, the International Astronomical Union (IAU) decided that Pluto is not a planet.

1974: NASA launches Italian satellite San Marcos C-2 (235/843 km)

1977: Space Shuttle above a Boeing 747 goes on it's maiden flight

1979: NASA launches space vehicle S-202

Featured Astronomy Image of the Week

Check out the former Astronomy Picture of the Day. See what surprises await you this week.

Explore Space / Astronomy

About.com Special Features

A Smarter Future

Tips that will help finance your education, excel in the classroom, and advance your career. More >

How to Ace the GRE

Being well prepared is the first step; here are more essential suggestions. More >

  1. Home
  2. Education
  3. Space / Astronomy
  4. Events & Calendars
  5. Calendars of Events
  6. This Date In History
  7. On This Date in History - February 18>

©2009 About.com, a part of The New York Times Company.

All rights reserved.