Skip to main content
Life, Unbounded

Life, Unbounded

Discussion and news about planets, exoplanets, and astrobiology

Failure to Launch Is Always An Option

Do not try this at home. A Russian Proton-M launch goes wrong – and it can happen to anyone (wait for the shock wave). A rocket is a controlled bomb.

October 29, 2014 — Caleb A. Scharf

Complex Life Owes Its Existence To Parasites?

Is complex life rare in the cosmos? The idea that it could be rests on the observation that the existence of life like us – with large, energy hungry, complicated cells – may be contingent on a number of very specific and unlikely factors in the history of the Earth...

October 24, 2014 — Caleb A. Scharf

Recent Lunar Discoveries Reveal a "New Moon"

Think you know about the Moon? I did, but then I started reading ‘The New Moon: Water, Exploration, and Future Habitation‘ (Cambridge University Press, 2014) and realized that my knowledge amounted to a teensy scrap of lunar dust...

October 21, 2014 — Caleb A. Scharf

Deep Space, Branching Molecules, and Life’s Origins?

If biologically important organic molecules like amino acids could form in interstellar space, the implications would be enormous. On the Earth we find plenty of amino acid species inside certain types of meteorites, so at a minimum these compounds can form during the assembly of a proto-stellar, proto-planetary system (at least this one) and end [...]..

September 30, 2014 — Caleb A. Scharf

Two New Arrivals Send Back Pictures Of Mars

The skies of Mars just got a little more crowded. On September 21st, 2014 NASA’s Mars Atmosphere and Volatile Evolution Mission (MAVEN) fired its engines for some 33 minutes in order to swing into a safe orbit...

September 26, 2014 — Caleb A. Scharf
C-SPAN’s ‘After Words’ Discusses Our Cosmic Status

C-SPAN’s ‘After Words’ Discusses Our Cosmic Status

Ever feel that broadcast TV fails to tackle the big issues? I don’t mean the state of the economy, healthcare, the future of clean energy, or what B-list celebrities had for breakfast – I mean the Really Big Issues...

September 23, 2014 — Caleb A. Scharf
The Biggest Cosmological Problem Is…

The Biggest Cosmological Problem Is…

…living in a place that makes doing cosmology hard. Let’s backtrack a little. Unless you’ve been living under a particularly thick and insulating rock you’ll know that in recent months the world of experimental cosmology (what would have previously been called observational cosmology, or just plain old astronomy) has been on tenterhooks waiting to see [...]..

September 22, 2014 — Caleb A. Scharf

Interstellar Space Can Be Pebbly

We’re used to thinking of the space between the stars as void, bereft of all but the most sparsely distributed atoms and molecules, or the occasional microscopic grain of silicon or carbon dust...

August 29, 2014 — Caleb A. Scharf

The Great Alien Debate (Part 1)

This post is one in a series covering, and expanding on, topics in the book The Copernicus Complex (Scientific American/FSG).           The conversation usually goes like this: Do you think we’re alone in the universe?...

August 26, 2014 — Caleb A. Scharf

Blog Index

Scroll To Top

Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis