Tag: astronomy

Pluto Might Have a Liquid Water Ocean?! | SciShow News

Pluto Might Have a Liquid Water Ocean?! | SciShow News

By Micah Moen 100 Comments October 17, 2019

[ INTRO ] Pluto might once have seemed like the last place in the solar system to look for liquid water, given that its balmiest days peak around negative two hundred twenty-five degrees Celsius. But ever since the New Horizons probe flew by it in two thousand fifteen, scientists have been studying what they think […]

What’s It Like on … Venus?

What’s It Like on … Venus?

By Micah Moen 100 Comments September 15, 2019

[Intro Music] Venus has been called Earth’s twin and I guess you could say there’s a certain resemblance: placed side by side it’d be hard to tell which planet is larger — the diameter of Venus is just 5% smaller than Earth’s — and inside both planets have metal cores surrounded by a thin, rocky […]

How Much Does the Sun Affect Earth’s Climate?

How Much Does the Sun Affect Earth’s Climate?

By Micah Moen 100 Comments September 11, 2019

[ ♪ Intro ] If you’ve been outside, like, even one time in your life, you know that the Sun plays a key role in the weather. It’s usually warmer during the day and colder at night, and a cloudy day feels a lot different from a sunny one. But that’s pretty obvious. Here’s a […]

Detecting Alien Biofluorescence

Detecting Alien Biofluorescence

By Micah Moen 100 Comments September 2, 2019

As thought on astrobiology has progressed over recent years along with the discovery of planets orbiting stars such as Proxima Centauri and the Trappist-1 system, it’s becoming increasingly evident that the most common type of star in the universe, Type M red dwarfs, may not be ideal for life to arise on worlds within their […]

Sir Martin Rees: Earth in its final century?

Sir Martin Rees: Earth in its final century?

By Micah Moen 100 Comments August 27, 2019

If you take 10,000 people at random, 9,999 have something in common: their interests in business lie on or near the Earth’s surface. The odd one out is an astronomer, and I am one of that strange breed. (Laughter) My talk will be in two parts. I’ll talk first as an astronomer, and then as […]

Universe Size Comparison 3D

Universe Size Comparison 3D

By Micah Moen 100 Comments August 25, 2019

Ceres, 950 km The Moon, 3500 km Callisto, 4800 km Mercury, 4900 km Mars, 6800 km Venus, 12000 Earth, 13000 km (You are Here) Kepler 22b, 30000 km Neptune, 50000 km Uranus, 51000 km Saturn, 120 000 km Jupiter, 140 000 km Proxima Centauri, 200 000 km The Sun, 1.4 Million km Sirius A, 2.5 […]

The Strange Scourge of Light Pollution

The Strange Scourge of Light Pollution

By Micah Moen 100 Comments August 23, 2019

In January 1994, a 6.7-magnitude earthquake knocked out power in Los Angeles. In the following hours, emergency services fielded an alarming number of phone calls from people asking if the big silvery cloud hovering in the night sky somehow caused the quake. They were referring to the Milky Way. Which is maybe a little sad […]

Are We Losing the Night Sky?

Are We Losing the Night Sky?

By Micah Moen 100 Comments August 15, 2019

Hey smart people, Joe here. For pretty much all of human history, this has meant the end of our day. Sure, we harnessed fire, and some artificial light, but we are not natural creatures of the night. But now we’re able to be part of the night like never before in human history. All thanks […]

Ecosystem Narrator – Saving Wetlands

Ecosystem Narrator – Saving Wetlands

By Micah Moen 0 Comment August 5, 2019

Our greatest national treasures are those that we often overlook until it is too late. But from the American Wetland Coastals and around the world it is not too late if we embrace this window of opportunity. Wetlands and a river’s eco system are known as REPARIAN CORRIDORS and are nature’s built in flood control. […]

Why We Are Losing the Night Sky

Why We Are Losing the Night Sky

By Micah Moen 48 Comments July 15, 2019

hey smart people Joe here for pretty much all of human history this has meant the end of our day I mean sure we harnessed fire and some artificial light but we are not natural creatures of the night but that all changed with one invention that has allowed us to be a part of […]