Dark matter influences the size of galaxies
Researchers simulated the effects of dark matter halos on galaxies and found that denser halos produced smaller galaxies.
Category: Space
The long-term fate of Earth’s biosphere
Scientists modeled how Earth’s temperature and atmosphere will change over billions of years and predicted that plants and the life they…
The Sun’s twin star may have tilted the planets’ orbits
A scientist simulated the early solar system to determine how interactions between the Sun and other stars affected its planetary orbits.
How many asteroids can we detect before they hit Earth?
Scientists simulated a telescope with the same specifications as the new Vera Rubin Observatory. They predicted it could detect 1 to 2…
Is Earth’s water why intelligent life evolved here?
A Columbia University scientist argued that the existence of humans provides strong evidence that intelligent life is more likely to evolve…
Clay minerals suggest a warm, wet past for Mars
Researchers studied clay deposits on Mars using tools aboard the Mars Reconnaissance Orbiter and found evidence for a warm and humid past…
Characterizing galaxies at “cosmic noon”
Astronomers studied 3 galaxies that formed 2 to 3 billion years after the Big Bang to calculate how much gas, stars, and dark matter they…
Searching for planets in a galaxy far away
Researchers surveyed over 20,000 stars thought to come from a nearby galaxy and found that no more than 1% harbored close-orbiting,…
What makes ‘chemically peculiar stars’ peculiar?
Scientists used a network of satellites to measure the rotational characteristics of 85 stars previously thought to have unique chemistries.
A halo of dark matter surrounding our Galaxy
Researchers studied the motions of stars in the outer regions of the Milky Way Galaxy and found that the gravitational field of a long,…