Tag Archives: Earth
Earthset From The Lunar Reconnaissance Orbiter
“On the Moon, the Earth never rises — or sets. If you were to sit on the surface of the Moon, you would see the Earth just hang in the sky. This is because the Moon always keeps the same … Continue reading
How Many Trees Are There In The World?
“It’s a simple question: how many trees are there on Earth? The answer required 421,529 measurements from fifty countries on six continents. Now this new data has been combined to produce a stunning visualisation of our planet as you’ve never … Continue reading
Aurora Over Clouds
“Auroras usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact the Earth’s magnetosphere, from which charged particles spiral along the Earth’s magnetic field to strike atoms and molecules high in … Continue reading
Into The Void
“Fifty years ago, on June 3, 1965, Edward White stepped out of the orbiting Gemini 4 spacecraft to become the first US astronaut to walk in space. White is captured in this photo taken by mission commander James McDivit from … Continue reading
24 Hours Of Reality: The World Is Watching
24 Hours of Reality is live right now. I’ve followed this for the past couple of years, and it’s worth tuning into, if only for a bit. A massively important topic, that we as humans are running out of time … Continue reading
A Spiral Aurora Over Iceland
“What’s happened to the sky? Aurora! Captured late last month, this aurora was noted by Icelanders for its great brightness and quick development. The aurora resulted from a solar storm, with high energy particles bursting out from the Sun and … Continue reading
To Scale: The Solar System
“On a dry lake bed in Nevada, a group of friends build the first scale model of the solar system with complete planetary orbits: a true illustration of our place in the universe.” (YouTube) A fantastic video showing the solar system, … Continue reading
10 Breathtaking Night Skies
Over at BBC Earth, they have a collection of 10 stunning night skies on Earth. These photographs show how breathtaking the cosmos above us is, especially the sweeping Milky Way. My favourite image of the bunch is the one shown left … Continue reading
What Physics Teachers Get Wrong About Tides
“Everything you’ve learned about tides is WRONG. We know that gravity affects the motion of all objects equally – so why are oceans the only bodies of water with tides? Join Gabe on this week’s episode of PBS Space Time … Continue reading
The Not-Planets
With the recent flyby of Pluto, Emily Lakdawalla has created this fantastic scale comparison between the so-called Not-Planets; those celestial bodies that are in our solar system and are of a similar size. This is an excellent way to show … Continue reading
Richer Ramblings 