Terrascope: Turning Earth into a giant telescope

We can turn Earth into a giant telescope. According to a recent study titled “The ‘Terrascope’: On the Possibility of Using the Earth as an Atmospheric Lens”, published by David Kipping of Columbia University, our planet offers an opportunity for pronounced lensing.

How to build a moon base

Ian Whittaker, Nottingham Trent University and Gareth Dorrian, University of Birmingham Half a century after humans first walked on the moon, a number of private companies and nations are planning to build permanent bases on the lunar surface. Despite the technological progress since the Apollo era, this will be extremely challenging. So how should you […]

Descending to the Moon: scientists reconstruct what Buzz Aldrin saw

“Tranquility Base here. The eagle has landed.” Neil Armstrong said so as the Apollo Lunar Module Eagle touched down on the lunar surface on Sunday, July 20, 1969, at 20:17 UTC.

5 Moon-landing innovations that changed life on Earth

Jean Creighton, University of Wisconsin-Milwaukee Much of the technology common in daily life today originates from the drive to put a human being on the Moon. This effort reached its pinnacle when Neil Armstrong stepped off the Eagle landing module onto the lunar surface 50 years ago. As a NASA airborne astronomy ambassador and director […]

How Earth Could Die – 9 Horrible Ways

Now we’re living on a warm, hospitable planet. As Carl Sagan has said “That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives.” We, humans, are the unquestionable rulers of our little oasis in a hostile universe. But […]

Solar System through the eyes of Hubble Space Telescope

Hubble Space Telescope was launched on April 24, 1990, and entered service on May 20, 1990. Since then, it has observed all the planets in our Solar System, apart from Earth and Mercury. Earth is far better studied by geologists on the ground and specialized probes in orbit. Hubble can’t observe Mercury as it is […]

What if Ganymede was the Earth’s second moon?

Jupiter’s moon Ganymede is the largest and most massive of the Solar System’s moons. It has a mean radius of 2634.1±0.3 km (about 1636 miles, 0.413 Earths). For comparison, our Moon’s radius is 1,737.1 km (1079 mi). What if Ganymede was the Earth’s second moon? How would it look in the sky, if it was […]