How much stuff is in the Universe?

“The most incomprehensible thing about the Universe is that it is comprehensible.” –Albert Einstein The observable Universe is huge. Incredibly, mind-bogglingly huge. When we look out, in any direction, we see galaxies upon galaxies upon galaxies, stretching for billions and billion of light years. This one picture, taken of a region of sky just one-tenth … Read more

What is the Speed of Gravity?

“The only problem with the speed of light, is it gets here too early in the morning.” –Danny Nevrath One of the most common questions I get asked is whether gravity is instantaneous, or whether there’s a speed limit to how fast the force of gravity can travel. It’s a good question! After all, we … Read more

Commercial Astronauts Answer Your Questions!

“There are people who make things happen, there are people who watch things happen, and there are people who wonder what happened. To be successful, you need to be a person who makes things happen.” –James Lovell, Astronaut: Gemini 7, Gemini 12, Apollo 8, and Apollo 13 A few weeks ago you had your chance … Read more

She Blinded Me With… A Nova?

Be careful whose advice you buy, but, be patient with those who supply it. Advice is a form of nostalgia, dispensing it is a way of fishing the past from the disposal, wiping it off, painting over the ugly parts and recycling it for more than it’s worth. But trust me on the sunscreen. –Baz … Read more

Weekend Diversion: Saving All The Love

“For human love–the beings that change or die; Die–change–forget: to care so is a curse, Yet cursed we’ll be rather than not care thus.” –Mathilde Blind Every once in a while, a new artist comes along that surprises me in some fashion, and with Joe Firstman, it’s his sincerity and earnestness. Have a listen to … Read more