TED Talk: The story of ‘Oumuamua, the first visitor from another star system | Karen J. Meech

In October 2017, astrobiologist Karen J. Meech got the call every astronomer waits for: NASA had spotted the very first visitor from another star system. The interstellar comet — a half-mile-long object eventually named `Oumuamua, from the Hawaiian for “scout” or “messenger” — raised intriguing questions: Was it a chunk of rocky debris from a… Continue reading TED Talk: The story of ‘Oumuamua, the first visitor from another star system | Karen J. Meech

Missing Hydrocarbons

Cosmology, origin of life, and astronomy are topics about which I read quite a bit. Any NASA and JPL discovery makes me stop whatever to read more about it. This is not something new as one of my school science fair projects was on O-Rings and Challenger. Before that I even attended Space Camp. (This… Continue reading Missing Hydrocarbons

Challenger

Twenty-five years ago today my teachers had us all gather in a classroom. A teacher was being sent into orbit. The intent was for us to see a historic event. Instead we got to see even bigger history being made as the Space Shuttle exploded 73 seconds after launch. The disintegration of the vehicle was… Continue reading Challenger

Closing In On an Earth-Sized Planet

Now Kepler has found the much-anticipated first rocky, Earth-sized exoplanet. It did it by staring for months on end at the same 150,000 stars in the constellation Cygnus. Kepler’s 1-meter-diameter telescope, hooked up to a sensitive light-measuring instrument, is capable of detecting the dimming of a star as a planet orbits in front of it—even… Continue reading Closing In On an Earth-Sized Planet

Little Changes

Flipping channels, I ran across Deep Impact during a speech given by the president (played by Morgan Freeman). The black president didn’t amaze me. Hollywood figured out how to portray them a decade before the US figured out how to elect one. What amazed me is that with all the really cool forward looking technology… Continue reading Little Changes

Evidence of Dark Matter

NASA – NASA Finds Direct Proof of Dark Matter: Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASA’s Chandra X-ray Observatory and other telescopes, gives direct evidence for the existence of dark matter. … These observations provide the strongest evidence yet… Continue reading Evidence of Dark Matter