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Posts by
Kelly Kizer Whitt
Small temperature increase can cause bigger wildfires, more often
A new study shows that just a half a degree of global temperature rise markedly increases fire danger on the most widely inhabited continents.
March 14, 2021
View a map of 25,000 supermassive black holes
Hours of radio observations have enabled scientists to create a map of the locations in Earth's night sky of 25,000 supermassive black holes. These black holes are very far away, occupying the cores of distant galaxies.
March 12, 2021
A Martian cloud reveals its secrets
Clever camerawork allowed scientists to view an elusive cloud that streams away from Mars' volcano Arsia Mons and determine how it's formed.
March 11, 2021
First exoplanet with evidence of tectonics
A new study reveals a distant exoplanet with one hemisphere pulsing with volcanic activity and the other hemisphere quietly providing the fuel.
March 11, 2021
Earth’s oxygen will be gone in 1 billion years
A billion years from now, as the sun heats up, the warmer atmosphere will break down carbon dioxide, killing off plant life, which in turn will shut off Earth's source of oxygen.
March 7, 2021
Photographs of historic Mars and Pleiades conjunction
On March 3, 2021, the red planet Mars and Pleiades star cluster in Taurus will appear close together on the sky's dome. The two won't get this close again until 2038! See photos of the big event.
March 3, 2021
Asteroid dust in Chicxulub crater seals deal on dino extinction
Scientists examined rock cores taken from the Chicxulub crater in Mexico, site of the asteroid impact that triggered dinosaur extinction, and found iridium, a telltale sign of asteroids.
March 3, 2021
World’s oldest DNA sheds light on mammoth evolution
A mammoth tooth uncovered from the Siberian permafrost yields the oldest DNA yet discovered and provides insight into the evolution of the giant beasts.
February 28, 2021
Perseverance saw its own descent stage crash
The Mars rover images a plume of debris from the impact of the descent stage that helped the spacecraft land safely on the red planet.
February 28, 2021
Parker Solar Probe captures a glimpse of Venus
The Parker Solar Probe turned its camera on Venus as the spacecraft flew by during a gravity assist.
February 27, 2021
