May 2021
Forecasting space-weather effects on Earth
... stream of particles and magnetic fields released by the Sun is called the solar wind. The Sun’s intense magnetic field can, in places, prevent the heat of the interior from reaching the surface, creating relatively cooler zones called sunspots...
January 2022
Revealing the magnetic universe
..., but as it lost mass via nuclear fusion and the outward flowing solar wind, the rotation slowed down and the magnetic activity decreased. Over the last 4.6 billion years, the Sun has completed nearly twenty revolutions around our galactic...
June 2022
Sunshades in space could help alleviate Earth’s climate crisis
... Lagrange Point 1 (SEL-1). This is an unstable equilibrium point between the Earth and the Sun, about 1.5 million km sunward of Earth, where the gravitational effects of the Earth and Sun cancel each other out. Thin film structures are also affected...
August 2018
Flying to the stars
... distances involved. Imagine for a moment that the distance between our Sun and the Earth is one metre. The Sun would be the size of a grain of salt on this scale. Still, the closest star to our Sun, Proxima Centauri, would be more than 265 km away...
April 2019
Scanning the skies for exoplanets
..., but finding an Earth-sized planet in the habitable zone of a star is pretty much at the top of the list,” said Vanderspek. “Because M stars are cooler than the Sun, the habitable zone is closer to the star, where the orbital periods are shorter and...
15 July 2020
Comet Neowise puts on a spectacular show
... tail is thought to be made up of dust particles that have been ejected from the main body of the comet as it is warmed by the sun. The upper more translucent tail on the other hand is composed of ions - gases that have had electrons stripped out...
