A new study suggests that the Earth has been moving through the remnants of an ancient exploded star for at least the past 33 000 years. The research team extracted a special isotope of iron called iron-60 from sea sediment samples and found that the isotope is...
August 27, 2020
New images from NASA's MAVEN spacecraft reveal wide areas of Mars' night sky pulsing in ultraviolet light. While researchers understand the light's source, its mysterious spiral shape left them puzzled. "There is a vast spiral of ultraviolet light...
August 26, 2020
Researchers from Tel Aviv University, the Hebrew University of Jerusalem, and the Israel Antiquities Authority were able to measure the Earth's magnetic field in Jerusalem in 586 BCE-- the time when the city was destroyed by the Babylonians. The groundbreaking...
August 20, 2020
A new theory published this week in the AAS' The Astrophysical Journal Letters suggests that our Sun may once have had a binary companion of similar mass. If confirmed, the presence of an early stellar companion increases the likelihood that the Oort cloud was...
August 19, 2020
A team of scientists successfully installed an optical seismometer on La Grande Soufrière volcano's summit-- the first high-resolution instrument placed on an active volcano. The seismometer, used to monitor gas and steam eruptions, survived the...
August 15, 2020
New research by the Woods Hole Oceanographic Institution (WHOI) found that a key component of the Gulf Stream-- a warm Atlantic ocean current stretching to the tip of Florida-- has steadily slowed and is now weaker than at any other point in the past 110 years. The...
August 14, 2020
Recent solar conditions indicate a persistent decline in solar activity‐‐‐possibly similar to the past solar grand minima, scientists reporting in AGU's Space Weather write. During such periods of low solar activity, the fluxes of galactic cosmic rays...
August 12, 2020
For the first time, scientists have used lasers to detect space debris in broad daylight. Prior to this, lasers could only be used to measure the distance to space debris during a few twilights hours. A new study proved that it is possible to use lasers in full...
August 10, 2020
Some scientists believe that an extraterrestrial impact, such as a meteor collision, caused global cooling around 13 000 years ago. However, a new study presents evidence left in layers of sediment showing that the event was most likely caused by volcanic eruptions....
August 09, 2020
A new study by Utah State University (USU) suggests that modern megaherbivores-- plant-eaters that weigh more than 1 000 kg (2 200 lbs)-- have the highest risk of going extinct among mammals, birds, and reptiles, just like what happened to their prehistoric...
August 06, 2020
Scientists at the Lawrence Berkeley National Laboratory conducted X-ray experiments to resolve the origin of rare, odd meteorites that have puzzled many researchers since they were discovered about 50 years ago. Also known as Type IIE iron meteorites, these objects...
August 06, 2020
An international team of researchers released the most detailed seafloor depth map of the Arctic Ocean. The map, which is the 4.0 version of the International Bathymetric Chart of the Arctic Ocean (IBCAO), expands up to 19.6 percent of the submarine surface mapped...
August 02, 2020
Scientists developed a new physics-based technique that successfully predicted seven of the Sun's largest flares from the past solar cycle, out of a set of nine. With further improvement, the new model could be used to inform forecasters of these intense...
August 02, 2020
An international team of researchers published a new study providing new clues about how and where subduction begins on Earth, the process behind the deadliest volcanic eruptions. The Earth's largest earthquakes and most explosive volcanoes occur at subduction...
August 02, 2020
The Visual Monitoring Camera (VMC) attached to Mars Express captured a mysteriously long, thin cloud over the 20 km (12 miles) high Arsia Mons volcano on July 17 and 19, 2020. According to ESA, the cloud is a recurrent feature made up of water ice and is influenced...
July 31, 2020
Scientists from the Massachusetts Institute of Technology (MIT) suggest that Snowball Earth-- a hypothesis proposing that the planet's surface became entirely frozen at least twice 700 million years ago-- might be linked to dramatic plunges in the amount of...
July 29, 2020
A recent study by the University of Hawaii examined the impacts of the 2018 Hurricane "Lane" and revealed that preceding moisture conditions brought by the storm exacerbated fire hazards, and both fire and rain severity were impacted by the hurricane...
July 26, 2020
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