Pregnancy in space: studying stem cells in zero gravity may determine whether it’s safe

This article was originally published at The Conversation. (opens in new tab) The contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Joanna Bridger (opens in new tab)Director of the Center for Genome Engineering and Maintenance (CenGEM), Professor of Genome Organisation, Brunel University LondonEmmanouil Karteris (opens in new tab)Reader in Biomedical Sciences, Brunel University … Read more

Dark energy eludes astronomers studying 100 million galaxies

Scientists are still coming up empty in the hunt for flaws in Einstein’s theory of general relativity that could explain the mysterious force driving the accelerating expansion of the universe. The researchers studied 100 million galaxies looking for signs that the strength of gravity has varied throughout the universe’s history or over vast cosmic distances. … Read more

Complex coacervate droplets as a model material for studying the electrodynamic response of biological materials

Alamgir Karim, Dow Chair and Welch Foundation Professor of Chemical and Biomolecular Engineering, led the research team. Credit: University of Houston Manipulating solid particles of a few micrometers in size using an electric field has been of great interest to physicists. These controllable particles can be assembled into dynamic chains that can effectively control the … Read more

Studying galaxy growth spurts in the early universe with NASA’s Roman

This Hubble image features four of the thousands of galaxies found within the Hubble Ultra Deep Field. All of the highlighted galaxies show evidence of vigorous star formation (blue regions filled with hot, young stars). In the insets at right, the near-infrared spectrum of each galaxy is displayed. By examining a galaxy’s spectrum, you can … Read more

Studying E.coli demonstrates how mutualism and cooperative behavior shape types

Megan Behringer, right, and postdoctoral researcher Sarah Worthan look at E. coli colonies on petri dishes. Credit: Vanderbilt University Bacteria, not humans, can take up more resources than necessary. When this happens, synthesized byproducts can leak into the environment, which allows other nearby bacteria to evolve cooperative behaviors—such as using the byproducts as nutrients. Cooperation … Read more

NASA’s NuSTAR mission celebrates ten years studying the X-ray universe

NASA’s NuSTAR space telescope, shown in this illustration, features two main components separated by a 30-foot (10-meter) mast, sometimes called a boom. Light is collected at one end of the mast and is focused along its length before hitting detectors at the other end. Credit: NASA/JPL-Caltech After a decade of observing some of the hottest, … Read more

Studying grassland from space

The maps ad show depictions of the grassland management regime and respective land-use intensity based on satellite data in the district of Oberallgäu (Bavaria) in 2018 on a 10km×10km area. (a) Grazing classes (0-3; low to high grazing intensity). (b) Frequency of mowing (0-4). (c) Fertilization (yes/no). (d) Land use intensity index (LUI): The values … Read more

NASA supports Event Horizon Telescope in studying Milky Way’s black hole

Composite image of the supermassive black hole at the center of the Milky Way galaxy. Credit: X-ray: NASA/CXC/SAO; IR: NASA/HST/STScI. Inset: Radio (EHT Collaboration) The black hole at the center of our galaxy is the subject of a groundbreaking new image from the Event Horizon Telescope collaboration. As the Event Horizon Telescope collected data for … Read more

Scientists begin studying 50-year-old frozen Apollo 17 samples

A frozen Apollo 17 sample being processed inside a nitrogen-purged glove box at NASA’s Johnson Space Center in Houston. The sample is one of many being studied as part of the ANGSA program. Credit: NASA/Robert Markowitz Scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, recently received samples of the lunar surface that have … Read more

Studying wealth inequality in animals can reveal clues about how their societies evolved

Across animal societies, some individuals benefit more from group-living, whereas others are left out. Credit: Laura Smale Wealth inequality is a research topic typically reserved for humans. Now, research from the Max Planck Institute of Animal Behavior and the University of Nebraska-Lincoln suggests that studying wealth inequality in animals can help shed light on social … Read more