NASA is set to launch its first Earth science small satellite constellation, which will help improve hurricane intensity, track, and storm surge forecasts, on Dec. 12 from Cape Canaveral Air Force Station in Florida.
What is dark matter made of? It’s one of the most perplexing questions of modern astronomy.
Like most planets in our solar system, the Earth has its own magnetic field. Thanks to its largely molten iron core, our planet is in fact a bit like a bar magnet. It has a north and south magnetic pole, separate from the geographic poles, with a field connecting the two. This field protects our planet from radiation and is responsible for creating the northern and southern lights – spectacular events that are only visible near the magnetic poles.
For about a century now, scientists have theorized that the metals in our Universe are the result of stellar nucleosynthesis. This theory states that after the first stars formed, heat and pressure in their interiors led to the creation of heavier elements like silicon and iron. These elements not only enriched future generations of stars (“metallicity”), but also provided the material from which the planets formed.
While the look and feel of our cars has changed in the past 100 years, the way we drive them hasn’t. But fundamental change is coming. In the next decade, not only will the way they’re powered and wired have shifted dramatically, but we won’t be the ones driving them anymore.
In the Chinese science fiction film The Wandering Earth, recently released on Netflix, humanity attempts to change the Earth’s orbit using enormous thrusters in order to escape the expanding sun – and prevent a collision with Jupiter.