Studies since 2018 have provided competing explanations of bright radar reflections from the base of the south polar ice cap.
unsolved mysteries
Posted inNews
Iodine-Laden Desert Dust Is Eating at Ozone Pollution
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
Posted inNews
Searching for Earthquakes in the Ionosphere
Earthquakes may release bursts of electrical energy that can be felt in the ionosphere, kilometers above Earth. The theory remains controversial, though.
Posted inNews
Un nuevo modelo para un antiguo evento de extinción
Un modelo 3D del sistema Tierra incorpora variables como la temperatura y la sulfurización para aclarar el evento de extinción de finales del Pérmico.
Posted inFeatures
The Young Earth Under the Cool Sun
How did our planet avoid being frozen solid during the early days of our solar system?
Posted inEditors' Vox
The Mystery of Methane on Mars Thickens
Two recently published papers zoom in on the mystery source of methane in the Martian atmosphere.
Posted inNews
Magnetic Stop Signs Show Birds the Way Home
Just like salmon and sea turtles, these songbirds appear to be sensitive to shifts in the magnetic field.
Posted inScience Updates
New Perspectives on the Enigma of Expanding Antarctic Sea Ice
Recent research offers new insights on Antarctic sea ice, which, despite global warming, has increased in overall extent over the past 40 years.
Posted inNews
A New Model for an Old Extinction Event
A 3D Earth system model incorporates variables such as temperature and sulfurization to shed light on the end-Permian extinction event.
Posted inResearch Spotlights
Radiometric Dating Sheds Light on Tectonic Debate
The emplacement of the Samail Ophiolite in Oman has been a source of disagreement among geologists. New state-of-the-art research offers a fresh perspective on its timing and geometry.