Space News & Blog Articles

We don't know what dark matter is, but that doesn't stop astronomers from using it to their advantage. Dark matter is part of what makes gravitational lensing so effective. Astronomers expect the Roman Space Telescope to find 160,000 gravitational lenses, and dark matter makes a crucial contribution to these lenses.

When astronauts finally reach Mars, they'll face a unique challenge: walking and working in gravity that's only 37% as strong as Earth's. After spending months in the weightlessness of space, their weakened muscles and bones will struggle to cope with even this reduced gravity. Now, researchers at the University of Bristol have developed a promising solution; a soft, wearable exosuit powered by inflatable "bubble muscles."

Scientists have created a groundbreaking computer simulation that mimics what the Square Kilometre Array Low-frequency (SKA-Low) telescope will see when it searches for signals from the universe's earliest epochs. This simulation represents a major step forward in preparing for one of astronomy's most ambitious goals: directly observing the Cosmic Dawn and Epoch of Reionisation.

The field of exoplanet studies continues to grow by leaps and bounds, with over 5,900 confirmed discoveries to date. Thanks to improved methods, instruments, and next-generation telescopes, the field is transitioning from exoplanet discovery to characterization. This is one of the main science objectives of the James Webb Space Telescope (JWST), and it has not disappointed! Thanks to Webb's advanced optics and sophisticated instruments, scientists can directly image exoplanets and gain new insights into how they form and what their atmospheres are composed of.

Most scientists agree that supernova explosions have affected Earth's climate, though the details are not all clear. They likely cooled the climate several times in the last several thousand years, just as humanity was becoming established around the world. The evidence is in telescopes and tree rings.

For most of us, dust is just something we have to clean up. For astronomers, interstellar dust is a hindrance when they want to study distant objects. However, recent James Webb Space Telescope (JWST) observations of a distant galaxy are changing that. This infrared-sensitive observatory is letting them find a way to use dust to understand the evolution of early galaxies. In addition, it uncovered a special property of that galaxy's ice-covered dust, indicating it could be similar to the materials that formed our Solar System.

The ecliptic is the apparent path that the Sun follows during a year. It's an imaginary line that the planets follow, with some small deviations, around the Sun. Spacecraft find it easier to follow the ecliptic because it's generally more energy efficient. However, the Solar Orbiter isn't on the ecliptic and it's giving us our first up-close looks at the Sun's poles.