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Solar System Education

Space Weather Underground: A Magnetometer Array with Educational Opportunities

The complex processes of Earth’s ionosphere may occur far above the planet’s surface, but when monitored from numerous locations at sufficient distances, they can be measured using inexpensive equipment on the ground. Dr. Charles Smith at the University of New Hampshire has assembled an extensive team to do just that, with participants ranging from space scientists with decades of experience to high school students considering futures in science and engineering. Named Space Weather Underground, the project could soon make extensive data on ionosphere dynamics available to scientists and the public alike.

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Solar System

How do we know if an asteroid headed Earth is dangerous?

There are a lot of things that pose a threat to our planet – climate change, natural disasters, and solar flares, for example. But one threat in particular often captures the public imagination, finding itself popularized in books and films and regularly generating alarming headlines: asteroids.

by Jonathan O’Callaghan

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Solar System Astronomy

The oldest footage of a Solar Eclipse (1900)

This oldest footage of a solar eclipse was filmed on 28 May 1900, by the famous British magician and inventor Nevil Maskelyne (1863-1924).

The footage has been restored and released online by the BFI channel.

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Solar System

10 Amazing Moon Facts

Earth has got only one moon – a rocky, cratered place, about a quarter the size of Earth and an average of 384,400 kilometers (238,855 miles) away. It is simply called – well, “the Moon” because people didn’t know other moons around other planets existed until Galileo Galilei discovered four moons orbiting Jupiter in 1610. Here are 10 amazing moon facts.

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Solar System Astronomy

Here’s how scientists planning to deflect asteroids that might damage Earth

Asteroids – the bits and pieces left over from the formation of the inner planets – are a source of great curiosity for those keen to learn about the building blocks of our solar system, and to probe the chemistry of life.

Humans are also considering mining asteroids for metals, but one of the crucial reasons scientists study this ancient space rubble is planetary defense, given the potential for space debris to cause Earth harm.

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Astronomy

Astronomers image the magnetic field of a black hole for the first time – here’s what it reveals

There was a lot of excitement when the Event Horizon Telescope collaboration showed the world the first-ever image of a black hole back in April 2019. Weighing in at 6.5 million times the mass of our Sun, this supermassive black hole is located in the galaxy Messier 87, or M87, some 55 million light-years away from Earth.

Ziri Younsi, UCL

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Astronomy Planet Earth

What is equilux and why on an equinox day and night aren’t equal lengths

In fact, contrary to the popular belief, the lengths of day and night aren’t equal on an equinox. There’s another term for this: equilux.

Categories
Astrobiology Astronomy

You’ll be amazed how cramped the TRAPPIST-1 System is

Science writer Pat Brennan has published a great article on the NASA exoplanets website titled “Life in the Universe: What are the Odds?”. In the article, he published a diagram showing the habitable zones of our solar system, and the TRAPPIST-1 system. The amazing thing is how cramped the TRAPPIST-1 system is: the orbits of the TRAPPIST-1 planets (seven in total) could fit into the orbit of Mercury!

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Astronomy

Galactic archaeology: astronomers are using stars as fossils to study the Milky Way

Understanding the stellar population of our galaxy could reveal a great deal, not only about our own home but also about the universe as a whole. So-called galactic archaeology can reveal how galaxies take shape and explain some of the interesting complexities of our own.

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Astronomy Solar System

A simple guide to buying your first telescope

You decided to buy your first telescope, but don’t know where to start? Here’s a simple guide for you.