Evan Gough

The Daisy World model describes a hypothetical planet that self-regulates, maintaining a delicate balance involving its biogeochemical cycles, climate, and feedback loops that keep it habitable. It’s associated with the Gaia Hypothesis developed by James Lovelock. How can we detect these worlds if they’re out there?

A pair of aged stellar companions, a compact white dwarf and a bloated red giant, create a spectacular display together.

In recent years, astronomers have developed techniques to measure the metal content of stars with extreme accuracy. With that capability, astronomers have examined sibling stars to see how their metallicity differs. Some of these co-natal stars have pronounced differences in their metallicity.

Thanks to the Hubble Space Telescope, we all have a vivid image of the Crab Nebula emblazoned in our mind’s eyes. It’s the remnant of a supernova explosion Chinese astronomers recorded in 1056. However, the Crab Nebula is more than just a nebula; it’s also a pulsar.

Ever since Voyager 2 flew past Uranus, scientists have measured the temperature in the upper atmosphere dropping. New research explains how.

Researchers have developed a novel way to measure when minerals were altered by water in Martian meteorites.

Some binary stars are unusual. They contain a main sequence star like our Sun, while the other is a “dead” white dwarf star that left fusion behind and emanates only residual heat. When the main sequence star ages into a red giant, the two stars share a common envelope.

74 million kilometres is a huge distance from which to observe something. But 74 million km isn’t such a big deal when the object is the Sun.

Earth has withstood fierce solar storms in the past that were far more powerful than any in our time. Can tree rings tell us more about them?

While most planets' axis of rotation is perpendicular to their orbital plane, Uranus has an extreme tilt angle of 98 degrees. It's flopped over on its side, likely from an ancient collision. It also has a retrograde orbit, opposite of the other planets.