Ground-based telescopes are key to DART asteroid mission success

For NASA’s DART spacecraft, the drama happens in space — but mission success relies on telescopes back on Earth. On Monday (Sept. 26), the Double Asteroid Redirection Test (DART) spacecraft will slam into a small space rock called Dimorphos — on purpose, at a staggering 4 miles (6.6 kilometers) per second. The exercise comes in … Read more

Mutation in key molecules could stop gonorrhea infection

mBio (2022). DOI: 10.1128/mbio.01670-22″ width=”800″ height=”389″/> Variant tdfJ genes are expressed from an inducible ectopic site in the gonococcal chromosome. Wild-type and mutated forms of tdfJ were cloned into a complementation vector designed to insert into an ectopic site of the gonococcal chromosome between the aspC and lctP loci. This construct contains an IPTG-inducible promoter … Read more

NASA’s DART asteroid-impact mission will be a key test of planetary defense

When NASA’s Double Asteroid Redirection Test (DART) slams into the tiny asteroid Dimorphos, it will be our first attempt to demonstrate our ability to deflect dangerous incoming asteroids. For decades, scientists around the world have been scanning the skysearching for potentially hazardous asteroids in the vicinity of Earth. And as astronomers discover near-Earth asteroids in … Read more

Amino acid supplement is a key to reproductive health in dairy cows

University of Illinois researchers, including Phil Cardoso (pictured), found rumen-protected lysine improves uterine health in dairy cows during the transition period. Credit: University of Illinois Lysine is an essential amino acid for dairy cows, helping boost milk production when added to the diet at adequate levels. But could lysine benefit cows in other ways? A … Read more

Task demonstrability a key component for how groups solve problems most effectively, study shows

Credit: Pexels There is no “I” in team … but there is a “me.” According to a new study of organizational teams, enhancing task demonstrability may be the key method for how an individual can convince a group to choose the correct solution to a problem. “In group decision-making, it can be so difficult to … Read more

Political parties use gerrymandering to counteract shifting voter preferences in key battleground states, study finds

, via Wikimedia Commons” width=”720″ height=”530″/> Credit: Steve Nass, CC BY-SA 4.0 via Wikimedia Commons During midterm elections this November, voters across the country will head to the polls to decide who should represent them for the next two years in the US House of Representatives. But, in some states, they may have a harder … Read more

First structure of key COVID enzyme at human body temperature

Scientists used x-rays to decipher the three-dimensional structure of the main protease of the virus that causes COVID-19 at different temperatures. The background image shows the full structure at 240 Kelvin (-28°F, cyan stick figure) and 100 K (-280°F, dark blue). The red and green blobs represent differences in the structure at these distinct temperatures. … Read more

Researchers unveil key processes in marine microbial evolution

This tree corresponds to the best maximum-likelihood tree inferred using an alignment with 7,160 sites and the GTRCAT model in RAxML99. The tree contains 16,821 OTUs generated from PacBio sequencing of 21 environmental samples (no reference sequences were included). Ring no. 1 around the tree indicates taxonomy of the environmental sequences, with all major eukaryotic … Read more

Scientists identify key mechanism controlling skin regeneration

Credit: Unsplash/CC0 Public Domain It’s sunburn season. Many of us have experienced the pain and peeling that comes from unprotected time in the sun, but we may not focus on a remarkable and vital part of the process: the regeneration of skin as the damaged tissue is replaced with new. Even without sunburn, the outer … Read more

Search for best strategy to control COVID-19 outbreaks without hurting tourism leads to one key policy

Credit: CC0 Public Domain What policies should be the ideal COVID-19 strategy to control outbreaks without closing borders and compromising the tourism economy? The search for answers led researchers to one crucial protocol. To contain the pandemic, various policies restricting travel have been put in place. These policies, however, harmed many economic sectors, especially tourism. … Read more