[ad_1] Figure 1. Schematic images of gamma ray production from cosmic ray protons and electrons. Protons from cosmic rays interact with interstellar protons such as molecular and atomic hydrogen. The interaction creates a neutral pion which quickly decays into two gamma photons (hadronic process). Electrons from cosmic rays energize interstellar photons (mainly the cosmic diffuse … Read more
[ad_1] Hypothetical distribution of nerves in the mandible of Tyrannosaurus (orange). Credit: Taylor & Francis Tyrannosaurus rex wasn’t just a huge beast with a big bite, it had nerve sensors at the end of its jaw that allowed it to better detect – and eat – its prey, a new study published in the peer-reviewed … Read more
[ad_1] When the space trading company’s Dragon spacecraft launches on Saturday, it will be loaded with experiments dedicated to probe everything from healthy bones and eyes to robot dexterity. SpaceX is aiming for the launch of its next resupply mission to the International Space Station (ISS) on Saturday, and it plans to perform some fascinating … Read more
[ad_1] A new study from the lab of Whitehead Institute member Yukiko Yamashita suggests that the chromosomal organizing system made possible by satellite DNA is one reason why organisms of different species cannot produce viable offspring. Credit: Jennifer Cook-Chrysos / Whitehead Institute More than 10 percent of our genome is made up of repetitive and … Read more
[ad_1] A photo of Mount Rainier taken by Dr Samuel Browd on August 9, 2021 on a flight en route to a reunion. (Photo by Samuel Brow) Washington’s Mount Rainier is either the snowiest place on the planet or a close second. According to records collected over the past century, the average annual snowfall in … Read more
[ad_1] NASA’s Curiosity Mars rover has captured a new 360-degree panorama that reveals the diverse terrain of Mount Sharp, a crucial part of the planet that plays a vital role in helping scientists study the region and learn more about it. his history. One of five rovers NASA sent to explore Mars, Curiosity returned regular … Read more
[ad_1] It gets close enough to the Sun to melt lead. Speed demon A team of researchers led by Scott Sheppard, a member of the scientific staff at the Carnegie Institution of Science, has discovered the fastest orbiting asteroid in the solar system. The tiny space rock, barely 1 kilometer in diameter and nicknamed 2021 … Read more
[ad_1] Illustration of the XPCS experiments. The translation and rotation of the particles in the scattering volume cause a variation in the speckle patterns shown at right. While the grainy, noisy texture makes these images visually similar, the MTECS algorithm is able to detect and analyze tiny variations between patterns. Credit: Zixi Hu, UC Berkeley … Read more
[ad_1] The fastest asteroid in the solar system was discovered at NOIRLab’s CTIO using the powerful … [+] 570-megapixel Dark Energy Camera (DECam) in Chile – the Sun’s new closest neighbor. Just ten days ago, astronomers discovered an asteroid with the fastest orbital period of all known asteroids in the solar system. The asteroid’s orbit … Read more
[ad_1] This illustration shows NASA’s MAVEN spacecraft and the Mars limb. Credit: NASA / Goddard By combining observations from three international spacecraft to March, scientists have been able to show that regional dust storms play a huge role in drying up the red planet. Dust storms warm the higher altitudes of the cold Martian atmosphere, … Read more