Astronomers have used a worldwide array of telescopes to spot the smallest dark object ever identified in the universe. Discovering more of these faint, hidden masses and understanding what they are could help eliminate certain explanations for dark matter, the invisible material believed to make up roughly one-quarter of theContinue Reading
Whether an asteroid is spinning neatly on its axis or tumbling chaotically, and how fast it is doing so, has been shown to be dependent on how frequently it has experienced collisions. The findings, presented at the EPSC-DPS2025 Joint Meeting in Helsinki, are based on data from the European SpaceContinue Reading
The universe is full of different types of radiation and particles that can be observed here on Earth. This includes photons across the entire range of the electromagnetic spectrum, from the lowest radio frequencies all the way to the highest-energy gamma rays. It also includes other particles such as neutrinosContinue Reading
For millennia, astronomers thought Uranus was no more than a distant star. It wasn’t until the late 18th century that Uranus was universally accepted as a planet. To this day, the ringed, blue world subverts scientists’ expectations, but new NASA research helps puzzle out some of the world’s mystique. em>Continue Reading
New research from the University of St Andrews has proposed that particles in solar flares are 6.5 times hotter than previously thought and provided an unexpected solution to a 50-year-old mystery about our nearest star. Solar flares are sudden and huge releases of energy in the Sun’s outer atmosphere thatContinue Reading
A plucked guitar string can vibrate for seconds before falling silent. A playground swing, emptied of its passenger, will gradually come to rest. These are what physicists call “damped harmonic oscillators” and are well understood in terms of Newton’s laws of motion. But in the tiny world of atoms, thingsContinue Reading
NASA’s Parker Solar Probe has directly observed magnetic reconnection in the Sun’s atmosphere for the first time, confirming decades-old theories about solar explosions. This discovery bridges small-scale events near Earth with massive solar eruptions that shape space weather. The data provides crucial insights to improve predictions of solar storms thatContinue Reading
‘Float rocks,’ sand ripples, and vast distances are among the sights to see in the latest high-resolution panorama by the six-wheeled scientist. The imaging team of NASA’s Perseverance Mars rover took advantage of clear skies on the Red Planet to capture one of the sharpest panoramas of its mission soContinue Reading
Many galaxies, including our own Milky Way, are characterized by a flat, extended, rotating stellar disk. These disk galaxies commonly contain two main parts: a thin disk and a thick disk. The thin disk contains younger, metal-rich stars, while the thick disk contains older, metal-poor stars. These distinct components holdContinue Reading
Thanks to its newly tilted orbit around the Sun, the European Space Agency-led Solar Orbiter spacecraft is the first to image the Sun’s poles from outside the ecliptic plane. Solar Orbiter’s unique viewing angle will change our understanding of the Sun’s magnetic field, the solar cycle and the workings ofContinue Reading
