arecibo

Earth-Passing Asteroid is “An Entirely New Beast”

On the last day of May 2013 asteroid 1998 QE2 passed relatively closely by our planet, coming within 6 million kilometers...…

9 years ago

How Big Are Galaxies?

I'm going to refrain from the initial response that comes to mind... actually, no I won't -- they're really, really,…

9 years ago

Researchers Send Mars Some Radar Love

A radar map of Mars' major volcanic regions created by the Arecibo Observatory in Puerto Rico (John Harmon et al.,…

10 years ago

Astronomers Measure Sunlight’s Shove

The physical force of sunlight on a moving asteroid has been measured by NASA scientists, providing information on how to…

10 years ago

NASA Prepares for Asteroid’s Close Pass by Earth

[/caption] On Tuesday, November 8, at 6:28 p.m. EST, an asteroid the size of an aircraft carrier will soar past…

11 years ago

Arecibo Observatory

[/caption] Named after the nearby city in Puerto Rico, the Arecibo Observatory (or Arecibo Radio Telescope) is the largest single-aperture…

13 years ago