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RAVAN CubeSat Measures Earth’s Outgoing Energy

A profile of Earth’s atmosphere and the setting sun as photographed by an Expedition 15 crewmember aboard the International Space Station. Credit: NASA

RAVAN CubeSat Measures Earth’s Outgoing Energy

RAVAN CubeSat Measures Earth’s Outgoing Energy An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth’s climate. The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in […]

NASA Studies Tethered CubeSat Mission to Study Lunar Swirls

Lunar swirls, such as the Reiner-Gamma swirl imaged by NASA’s Lunar Reconnaissance Orbiter, are strange markings on the moon that a conceptual CubeSat mission would study. Credits: NASA

NASA Studies Tethered CubeSat Mission to Study Lunar Swirls

NASA Studies Tethered CubeSat Mission to Study Lunar Swirls A novel mission concept involving two CubeSats connected by a thin, miles-long tether could help scientists understand how the moon got its mysterious “tattoos” — swirling patterns of light and dark found at more than 100 […]

Two Weeks in the Life of a Sunspot

A blended view of the sunspot in visible and extreme ultraviolet light reveals bright coils arcing over the active region — particles spiraling along magnetic field lines. Credit: NASA’s Goddard Space Flight Center/SDO

Two Weeks in the Life of a Sunspot

Two Weeks in the Life of a Sunspot On July 5, 2017, NASA’s Solar Dynamics Observatory watched an active region — an area of intense and complex magnetic fields — rotate into view on the Sun. The satellite continued to track the region as it […]

NASA Selects Proposals to Study Sun, Space Environment

Illustration of the heliophysics system Credits: NASA

NASA Selects Proposals to Study Sun, Space Environment

NASA Selects Proposals to Study Sun, Space Environment NASA has selected nine proposals under its Explorers Program that will return transformational science about the Sun and space environment and fill science gaps between the agency’s larger missions; eight for focused scientific investigations and one for technological development […]

Russia’s Mayak satellite: crowd-funded cosmic pest or welcome nightly visitor?

The Mayak satellite will unfold a giant reflective pyramid that will be seen from Earth. Mayak/YouTube/Screenshot

Russia’s Mayak satellite: crowd-funded cosmic pest or welcome nightly visitor?

Russia’s Mayak satellite: crowd-funded cosmic pest or welcome nightly visitor? The Mayak satellite will unfold a giant reflective pyramid that will be seen from Earth. Mayak/YouTube/Screenshot Michael J. I. Brown, Monash University Will we soon see a new bright “star” visiting our evening skies? The […]

NASA Looks to Solar Eclipse to Help Understand Earth’s Energy System

During the eclipse, scientists will take ground measurements in Casper, Wyoming, and Columbia, Missouri. Credits: NASA/Katy Mersmann

NASA Looks to Solar Eclipse to Help Understand Earth’s Energy System

NASA Looks to Solar Eclipse to Help Understand Earth’s Energy System It was midafternoon, but it was dark in an area in Boulder, Colorado on Aug. 3, 1998. A thick cloud appeared overhead and dimmed the land below for more than 30 minutes. Well-calibrated radiometers […]

Satellite sends quantum-spooky signals to Earth – raising hopes of secure global communications

Entangled’ beams successfully picked up at Earth. Andrey VP/Shutterstock

Satellite sends quantum-spooky signals to Earth – raising hopes of secure global communications

Satellite sends quantum-spooky signals to Earth – raising hopes of secure global communications ‘Entangled’ beams successfully picked up at Earth. Andrey VP/Shutterstock Clive Emary, Newcastle University The satellite Micius, launched from Jiuquan, China, in August last year, is unlike any other in the sky. While […]

NASA Listens in as Electrons Whistle While They Work

Space is not empty, nor is it silent. The region around Earth is filled with magnetic field lines and trapped energetic particles, zooming about in a high-speed dance around the planet (shown here in an illustration). Credit: NASA's Goddard Space Flight Center/Brian Monroe

NASA Listens in as Electrons Whistle While They Work

NASA Listens in as Electrons Whistle While They Work Space is not empty, nor is it silent. While technically a vacuum, space nonetheless contains energetic charged particles, governed by magnetic and electric fields, and it behaves unlike anything we experience on Earth. In regions laced […]

Melting ice and satellites: how to measure the Earth’s ‘wiggle’

Scientists use satellite sensing to find the Earth’s centre of mass. NASA, CC BY-SA

Melting ice and satellites: how to measure the Earth’s ‘wiggle’

Melting ice and satellites: how to measure the Earth’s ‘wiggle’ Scientists use satellite sensing to find the Earth’s centre of mass. NASA, CC BY-SA Anna Riddell, University of Tasmania and Matt King, University of Tasmania In a driverless future, it will be vital that our […]