Tag archives: galaxy

Our Solar System: Mars
By Tom Farr   |   January 28, 2021

On July 20, 1976, seven years to the day after humans first walked on the moon, a bunch of us new employees of the Jet Propulsion Laboratory trooped over to Caltech’s Beckman auditorium (the one that looks like a circus tent) to see the first landing of a spacecraft on another planet. Viking 1 was […]

Our Solar System: Venus
By Tom Farr   |   January 7, 2021

I was already in the Science Team room at NASA’s Jet Propulsion Laboratory when the second cycle of radar images of the surface of Venus were beamed down in May of 1991. I waited impatiently for the five-inch print roll to start spooling out. The first cycle had gone well and most of Venus’s surface […]

Our Solar System: Mercury
By Tom Farr   |   December 31, 2020

As a kid I was always picking up rocks and wondering at the diversity of them all. Where did they come from? And family camping trips gave me a sampling of the varied landscapes of California and the West. When I found out I could combine my love of the outdoors with the study of […]

Black Holes and Dark Matter News
By Joanne A Calitri   |   April 18, 2019

On April 10, the Event Horizon Telescope (EHT) scientists historically released the first image of a black hole they have taken using observations of the center of the galaxy M87, a massive galaxy in the constellation of Virgo. This black hole is located 55 million light-years from Earth and has a mass 6.5-billion times larger […]