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Space & Planets

The Sun, a round orange orb, is observed through an ultraviolet filter that gives its surface a mottled deep orange look. There are a few prominences along the edge of the circular disk and one loop at around one o’clock, but there are no sunspots visible on the surface.
Posted inNews

Why Did Sunspots Disappear for 70 Years? Nearby Star Holds Clues

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 June 202227 March 2023

Five decades of data revealed a star undergoing a pause in magnetic activity similar to what the Sun experienced almost 400 years ago.

The solar corona is visible during the total solar eclipse on 21 August 2017.
Posted inNews

A “Dam” in the Corona May Make the Solar Wind Gain Its Unusual Speeds

by Alakananda Dasgupta 8 June 20228 June 2022

A new study supports the idea of a “helicity barrier” influencing the fluctuating stream of interplanetary plasma.

A poof of red and yellow light shoots out of a dark red and black star
Posted inNews

Coronal Dimmings Shine Light on Stellar CMEs

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 6 June 202225 August 2022

Coronal mass ejections from stars have eluded easy observation, so scientists are looking at what’s left behind.

Planta Arabidopsis de dos semanas cultivada en un regolito lunar. La planta es pequeña y ella y el regolito se encuentran al centro de la imagen dentro de un recipiente de cristal transparente.
Posted inENGAGE, News

El suelo lunar permite cultivar plantas

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 1 June 202227 March 2023

Plantas cultivadas en regolito lunar recolectado por las misiones Apollo crecieron con éxito desde la semilla hasta el retoño, brindando así información sobre las futuras perspectivas de la agricultura lunar.

A computer simulation of solar wind entry layer and flux transfer events (green lines) in Mercury’s dayside magnetosphere
Posted inResearch Spotlights

Solar Wind a Major Driver of Atmospheric Sodium at Mercury

by Morgan Rehnberg 27 May 202227 July 2022

MESSENGER observations show a 50% rise in atmospheric sodium-group ions during periods of high solar wind activity.

An image of the Sun showing an eruption of solar material from the Sun’s left side.
Posted inNews

Chinese-Led Solar Research Is Looking Bright

Katherine Kornei, Science Writer by Katherine Kornei 24 May 202210 March 2023

With new missions underway and planned, China is stepping up to observe our nearest stellar neighbor.

Image of the meteorite Allen Hills 83100 illustrating spectral differences
Posted inEditors' Highlights

Pushing the Limits of IR Spectra: Using Nano-FTIR on Meteorites

by David Trang 16 May 202219 January 2023

A new method, nano-FTIR, is used to examine microstructures and processes on grains, displaying its benefit for examining asteroid returned samples through a meteorite.

An Arabidopsis plant grown in lunar soil for about 2 weeks
Posted inENGAGE, News

Lunar Soil Can Grow Plants

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 13 May 202227 March 2023

Plants grown in lunar regolith collected by Apollo missions successfully grew from seed to sprout, lending insight into future lunar agriculture prospects.

Europa situated in front of Jupiter.
Posted inResearch Spotlights

Dynamics of Ocean Worlds Likely Controlled by Their Rotation

by Morgan Rehnberg 9 May 202227 July 2022

New simulations suggest that subsurface oceans on icy moons with small natural Rossby numbers may be dominated by rotational effects.

Líneas de campo magnético simuladas en amarillo alrededor de la luna de Saturno Triton.
Posted inResearch Spotlights

Encontrando los océanos ocultos de las lunas usando campos magnéticos inducidos

by Morgan Rehnberg 5 May 20225 May 2022

Un análisis de componentes principales de modelos especulativos puede predecir con más seguridad que las técnicas anteriores la p^ppresencia de un océano subsuperficial en un objeto planetario.

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