CHEOPS finds unique planetary system — ScienceDaily
Musical notes that sound pleasant together can form a harmony. These notes are usually in a special relationship with each other: when expressed as frequencies, their ratios result in simple fractions, such as four-thirds or three-halves. Similarly, a planetary system can also form a kind of harmony when planets, whose orbital period ratios form simple […]
Astronomers dissect the anatomy of planetary nebulae using Hubble Space Telescope images
On the left is an image of the Jewel Bug Nebula (NGC 7027) captured by the Hubble Space Telescope in 2019 and released in 2020. Further analysis by researchers produced the RGB image on the right, which shows extinction due to dust, as inferred from the relative strength of two hydrogen emission lines, as red; […]
Leaving so soon? Unusual planetary nebula fades mere decades after it arrived — ScienceDaily
Stars are rather patient. They can live for billions of years, and they typically make slow transitions — sometimes over many millions of years — between the different stages of their lives. So when a previously typical star’s behavior rapidly changes in a few decades, astronomers take note and get to work. Such is the […]
Planetary Cave Exploration Progresses – Eos
Caves on Earth form by a variety of processes. Volcanism can leave behind lava tubes or gas-inflated chambers, fluid dissolution hollows out caverns in subterranean rock, and wind and weather can mechanically erode cliff or seaside caves, for example. Because many of these same processes operate on other planetary bodies in our solar […]
Final Frontier? The Evolution of Planetary Science Missions
The latest episode of Third Pod from the Sun features an interview with Fran Bagenal, a planetary scientist at the University of Colorado Boulder. Bagenal provides an overarching view of different planetary missions and describes how the research and findings of each have built upon the innovations and discoveries that came before. Bagenal […]
