Magazine | Page 229 of 282 | Astronomy.com

Alien Life, Science

Could an asteroid the size of the one that killed the dinosaurs knock Earth out of its orbit and create a global climate shift?

Phil Harrington’s binocular universe: The sky’s Triangle

Glenn Chaple’s observing basics: Spy a solar system wanderer

Bob Berman’s strange universe: Hall of mirrors

How does the “Planets this month” foldout map work? I don’t see any time given for the map, unlike the circular star map on the following page.

Human Spaceflight, Science

Can you see the American flag Apollo 11 astronauts left on the Moon in 1969?

Stephen James O’Meara’s secret sky: Dancing to a deaf wind

How the LBT came to be

Robotic Spaceflight

From COBE to WMAP

Phil Harrington’s binocular universe (December 2007 web extra)

Your observing sweet spots

Observing, Planets

Mars observing tips