An avid visual astronomer, Chris operates the historic 74˝ telescope at the David Dunlap Observatory. He frequently organizes local star parties and solar astronomy sessions, and regularly delivers presentations about astronomy and Earth and planetary science, to students and the public in his ...
When cosmic inflation came to a sudden and still mysterious end, the more classic descriptions of the Big Bang took hold. A flood of matter and radiation, known as "reheating," began populating our universe with the stuff we know today: particles, atoms, the stuff that would become stars a...
But I did predict Biden would finish no better than 3d or 4th in IA and NH, but would win SC and then do well on March 3. I thought the Dems might be headed for a contested convention, tho predicted Biden would win on the second ballot because of the Super Delegates, most of whom...
I have seen more than a few questions and comments like yours and I can't help but wonder what Mr. Galileo Galilei or Mr. Charles Messier would think about the "difficulty" it took to be an amateur astronomer 50 years ago. From their veiwpoint you had it easy indeed. You had the ab...
various word problems.) So, the situation here is somewhat similar to the Busy Beaver Challenge, in that past a certain point of complexity, we would necessarily encounter unsolvable problems; but hopefully there would be interesting problems and phenomena to discover before we reach that threshold...
It would be nice to be able to integrate such a project with some sort of graph visualization software that can take an incomplete determination of the poset as input (in which each potential comparison in is marked as either true, false, or open), completes the graph as much as possible...
According to panpsychism, everything in the world has an internal mind. But some scientists think nothing is conscious—not even you.
("about the size of a box truck," NASA said) passed just 2,200 miles from Earth. Because it's so small, the rock, dubbed "2023 BU," was only found by an amateur astronomer on Jan. 21, when it journeyed nearby. It was never a threat. Even if it hit Earth, it would "largely...
Tonight let’s look towards Cassiopeia as we remember this great astronomer… Almost everyone is familiar with the legend of Cassiopeia and how the Queen came to be bound in her chair, destined for an eternity to turn over and over in the sky, but did you know that Cassiopeia holds a ...
Fresh from its bright opposition in September, Saturn remains an excellent target for naked eye stargazers. As luck would have it, tonight it will rise with the almost full moon, appearing just after sunset in North America. Once the moon has risen into a darker sky and lost its golden yel...