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Life, Unbounded

Life, Unbounded

Discussion and news about planets, exoplanets, and astrobiology

Summer Shorts: A Cometary Rubber Duck

Summer Shorts: A Cometary Rubber Duck

It’s summer in the northern hemisphere of a small, damp, planet orbiting a middle-aged star in a spiral galaxy of matter enjoying a brief heyday before colliding with another galaxy in some 4 billion orbits of the same small, damp, planet...

July 27, 2014 — Caleb A. Scharf

Sneaking up on a Sweaty Comet

Over the coming month the European Space Agency’s (ESA) Rosetta mission will fire its main engines no less than eight times to tweak its interplanetary intercept course with Comet Churyumov-Gerasimenko; eventually sidling up to the 4 kilometer wide cometary nucleus at about 7.9 meters per second in early August...

June 30, 2014 — Caleb A. Scharf
The Photons Of Your Life

The Photons Of Your Life

An unusual question raises an intriguing idea. At a party a few nights ago a friend approached me with a dilemma. A relative of theirs had died, and the spouse was trying to understand if it was at all possible that there was still ‘something’ of their partner in existence; a tangible part of their [...]..

June 16, 2014 — Caleb A. Scharf

Space: A New Hope or an Old Dream?

The release of a long-awaited National Academy of Sciences report on the state and future of the US space program has triggered wide-reaching commentary on what it means to be space-faring...

June 5, 2014 — Caleb A. Scharf

Exoplanet Size: It’s Elementary

Since quite early in the history of the discovery of planets around other stars it’s been apparent that the likelihood of certain types of planets around a star is related to the abundance of heavy elements in that system...

June 3, 2014 — Caleb A. Scharf

Heads Up! Thirteen Years Of Asteroid Impacts On Earth

Since the Chelyabinsk event in early 2013, when a brilliant meteor fireball streaked across Russian skies and exploded with the energy of thirty Hiroshima bombs, humans have paid slightly more attention to the potential danger of asteroids than before...

April 23, 2014 — Caleb A. Scharf
Copernicus in Cleveland

Copernicus in Cleveland

What is our cosmic significance? Does it even make sense to ask a question like that? If you happen to find yourself in Cleveland, Ohio this coming Thursday evening, and stop by the Cleveland Museum of Natural History at 8pm you can catch me talking about this...

April 14, 2014 — Caleb A. Scharf

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Memorial Day Flash Sale

Memorial Day Flash Sale

How Smartphones Affect Mental Health