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NASA Astronaut Aboard Space Station Answers STEM Students’ Questions

Students participating in Space Station Explorers STEM programs across the nation will pose questions this week to NASA astronaut Chris Cassidy aboard the International Space Station.

Lava tubes on Mars and the Moon are so wide they...

IMAGE: The morphological surface expression of lava tubes on Mars and the Moon is similar to their terrestrial counterpart. view more  Credit: ESA / Luca Ricci The international journal Earth-Science Reviews published a paper offering an overview of the lava tubes (pyroducts) on Earth, eventually providing an estimate of the (greater) size of their lunar and Martian counterparts. This study involved the Universities of Bologna and…

Astronomers sink their teeth into special supernova

IMAGE: Artist's interpretation (without labels) of the calcium-rich supernova 2019ehk. Shown in orange is the calcium-rich material created in the explosion. Purple coloring represents gas shed by the star right before... view more  Credit: A. M. Geller/Northwestern University/CTIO/SOAR/NOIRLab/NSF/AURA Astronomers using several telescopes at NOIRLab, including the Southern Astrophysical Research (SOAR) Telescope, have obtained critical data on a particular type of exploding star that produces copious amounts…

Ammonia-rich hail sheds new light on Jupiter’s weather

Water is a key substance in the meteorology of planets and is believed to play a key role in their formation. Terrestrial storms are driven by water dynamics creating lightning storms thought to be connected to regions where multiple phases of water co-exist (solid, liquid and gas). As on Earth, Jupiter's water is moved around by thunderstorms. Those are thought to form within the planet's…

Stargazing professor earns prestigious accolade for stellar discoveries

While her research may have focused exclusively on the stars, Professor Vicky Kaspi's work has most certainly been getting attention here on Earth. Indeed, the Royal Society of the United Kingdom - one of the world's most recognized scientific organizations - today announced that she is the recipient of the Bakerian Medal for 2021. Awarded since 1775 for outstanding research in the physical sciences, the…

Calcium-rich supernova examined with x-rays for first time

IMAGE: Artist's interpretation of the calcium-rich supernova 2019ehk. Shown in orange is the calcium-rich material created in the explosion. Purple coloring represents gas shedded by the star right before the explosion,... view more  Credit: Aaron M. Geller, Northwestern University IT Called "calcium-rich supernovae," these stellar explosions are so rare that astrophysicists have struggled to find and subsequently study them. The nature of these supernovae and their…

Disparities in a common air pollutant are visible from space

As a global center for petrochemical manufacturing, Houston, Texas, experiences some of the worst air quality in the country, according to the U.S. Environmental Protection Agency. Evidence suggests that air pollution disproportionately affects low-income, non-white and Hispanic residents, but it's difficult to directly observe differences in pollutants between neighborhoods. Now, researchers reporting in Environmental Science & Technology have used airplanes and a satellite to uncover…

Calcium-rich supernova examined with X-rays for first time

IMAGE: Artist's interpretation of the calcium-rich supernova 2019ehk. Shown in orange is the calcium-rich material created in the explosion. Purple coloring represents gas shedded by the star right before the explosion,... view more  Credit: Aaron M. Geller/Northwestern University EVANSTON, Ill. -- Half of all the calcium in the universe -- including the very calcium in our teeth and bones -- was created in the last gasp…

NASA data helps uncover our solar system’s shape

IMAGE: An updated model suggests the shape of the Sun's bubble of influence, the heliosphere (seen in yellow), may be a deflated croissant shape, rather than the long-tailed comet shape suggested... view more  Credit: Opher, et al. Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions. All the planets of…

NASA’s cloudsat takes a slice from tropical storm Isaias 

IMAGE: This visible image of Tropical Storm Isaias was taken from NOAA's GOES-East satellite on Aug. 3 at 3.p.m. EDT (1900 UTC) shows the path that CloudSat observed the storm.... view more  Credit: Credit: NASA NASA's CloudSat passed over Tropical Storm Isaias as it was strengthening back into a hurricane on Aug. 3, and before it made landfall in North Carolina. CloudSat revealed areas of heavy rain…
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