Tech & Engineering
Deserts may seem lifeless and inert, but they are very much alive. Sand dunes, in particular, grow and move – and according to a decades long research project, they also breathe humid air.
- Journal of Geophysical Research Earth Surface
Understanding the relationship between Mars’ climate and its axial tilt and orbit around the sun is one of the most important goals of Mars science. Most past studies toward this goal have studied the polar ice caps: huge sheets of water ice at the north and south pole. To gain more insight, a team of researchers, led by Michael Sori of Purdue University, have, instead, studied smaller ice deposits (only tens of kilometers in diameter) near the north and south pole but separate from the larger polar ice caps, located inside craters. The team found that the ice deposit in Burroughs Crater contains particularly good evidence that recent Martian climate is strongly controlled by changes in the planet’s orbit and axial tilt.
- Geophysical Research Letters
- NASA Headquarters
While for humans the constants might be death and taxes, for planets the constants are gravity and collisions. Brandon Johnson studies the latter, using information about impacts to understand the history and the composition of planets, moons, asteroids and meteorites throughout the solar system.
Inadequate and imbalanced fertilizer application is a well understood root cause of stagnating and inconsistent yields across sub-Saharan Africa (SSA). What is required is the effective delivery of more made-to-measure approaches that can counter the variability farmer’s face in their fields from season to season.
- Field Crops Research
With a fortuitous lineup of a massive cluster of galaxies, astronomers from among other institutes the University of Copenhagen and DTU discovered a single star across most of the entire observable Universe. This is the farthest detection of a single star ever. The star may be up to 500 times more massive than the Sun. The discovery has been published today in the scientific journal Nature.
People who grew up in rural or suburban areas have better spatial navigation skills than those raised in cities, particularly cities with grid-pattern streets, finds a new study led by researchers at UCL, University of Lyon and the University of East Anglia (UEA).