Tag Archives: education

Einstein’s Gravity Waves: How Astronomers Proved Relativity’s Key Prediction | Alex Filippenko

One of the most exciting discoveries in all of science in the past year—and one in which there will be a lot of progress in the next five years—is the discovery of gravitational waves: ripples in the actual fabric of space time produced when, for example, two massive stars or black holes merge into one.… Read More »

How astronomy makes neuroscience even cooler: brains, gold, and neutron stars | Michelle Thaller

To me it’s amazing some of the things that we actually do know. There’s plenty of things that are conjecture or theories but there’s a lot of stuff that we have real observations and real knowledge of. And amazingly, to me, one of the things is: where did all the atoms in our body come… Read More »

History of Science – 16th-Century Astronomy – 11.1 Astronomy

>>Get your backpack ready; let’s brainstorm another trip! This week in our whirlwind tour of the history of science let’s travel to the 16th Century—the 1500s. I hope you’ll make some meaningful and unexpected discoveries this week as we explore the strange new world of the century of the Reformation, the era of Copernicus, Tycho… Read More »

Galaxies, part 1: Crash Course Astronomy #38

We live in a pretty cool neighborhood: the Milky Way galaxy. We’re out in the suburbs, sure, but it’s still an interesting place, buzzing with activity. Stars, nebulae, stellar clusters of various sorts, the occasional supernova. It’s a happening place. In the earliest part of the 20th century, astronomers were just starting to figure this… Read More »

Outtakes #5: Crash Course Astronomy

[music] The universe will be dark — dark to human eyes, at least assuming we have eyes in a trillion years or we’re even around that long. Wow, that– yeah. OFF-SCREEN: Yeah. I was trying to be a little more jocular. [intro] OFF-SCREEN: I am rolling. Are you? Are you? Are you hating? OFF-SCREEN: They… Read More »

Meet the Comets – an astronomy/space song – for kids!

Sometimes you’ll look up into the night sky And see something amazing passing by Brighter and closer than any star Travelling our solar system from very far A nucleus made from frozen gas, rock and ice tails streaming behind them that look so nice What are these bright visitors in the sky? Where did they… Read More »

Astronomers Discover Mystery Radio Signal From Another Galaxy

The date is 2001, and in the Australian outback a 64 meter radio telescope scans the sky for electromagnetic signals from deep space. With most of the electromagnetic energy in the universe being generated by stars and black holes, and outside of the visible light spectrum, the radio dish and the data it collects as… Read More »

Free Astronomy: Discovering the Universe Course – Overview – Open2Study

[MUSIC PLAYING] Hi. My name’s John Morgan, and I’m a teacher and researcher at Curtin University in Perth, Australia. My specialisation is radio astronomy. What we do is we use cutting-edge technology to explore the universe and understand fundamental questions such as, how does gravity work? In this subject, I’d like to share some of… Read More »

Astronomy Activity: Pocket Solar System

People often think that orbits of the planets are more or less evenly spaced and closer together than in reality. Building scale models of the solar system is a challenge because of the distances and huge size differences involved. This is a simple little model to give you an easy way to demonstrate to any… Read More »

Dark Energy, Cosmology part 2: Crash Course Astronomy #43

The previous episode of Crash Course Astronomy was a bit of a brain-stretcher. We saw that the Universe is expanding, space is expanding, and it’s carrying galaxies along with it. That means it was denser in the past, and at some point — 13.82 billion years ago, to be fairly precise — all of space,… Read More »