Evan Gough
If Gravity Can Exist Without Mass, That Could Explain Dark Matter
Dark Matter is Nature's poltergeist. We can see its effects, but we can't see it, and we don't know what…
The Milky Way’s Last Merger Event Was More Recent Than Thought
The Milky Way is only as massive as it is because of collisions and mergers with other galaxies. This is…
An Earth-sized Exoplanet Found Orbiting a Jupiter-Sized Star
Red dwarf stars, also known as M-dwarfs, dominate the Milky Way's stellar population. They can last for 100 billion years…
Primordial Black Holes Can Only Explain a Fraction of Dark Matter
What is Dark Matter? That question is prominent in discussions about the nature of the Universe. There are many proposed…
The JWST is Re-Writing Astronomy Textbooks
When the James Webb Space Telescope was launched at the end of 2021, we expected stunning images and illuminating scientific…
How Mars’ Moon Phobos Captures Our Imaginations
For a small, lumpy chunk of rock that barely reflects any light, Mars' Moon Phobos draws a lot of attention.…
Evidence of Dark Matter Interacting With Itself in El Gordo Merger
The Standard Model of particle physics does a good job of explaining the interactions between matter's basic building blocks. But…
Life Probably Played No Role in Mars’ Organic Matter
The Martian surface shows ample evidence of its warm, watery past. Deltas, ancient lakebeds, and dry river channels are plentiful.…
What’s Under This Hole on the Surface of Mars?
Human visitors to Mars need somewhere to shelter from the radiation, temperature swings, and dust storms that plague the planet.…
Sorry Spock, But “Vulcan” Isn’t a Planet After All
In 2018, astronomers detected an exoplanet around the star 40 Eridani. It's about 16 light-years away in the constellation Eridanus.…