PEPS

Planets, Environments and Space Plasmas

The small moon Enceladus sculpts Saturn’s environment over record distances

An international scientific team, including scientists from IRAP and led by LPP, has revealed, using data from the Cassini mission, that the interaction between Saturn and its moon Enceladus is […]

11.02.2026

Magnetic reconnection models validated by analysis of twenty years of measurements

By allowing plasmas to exchange their magnetic connection, the magnetic reconnection process enables the sudden release of magnetic energy in the form of accelerated particles and rapid, heated flows. For […]

22.01.2026

All about the solar flare of January 18, 2026

An X1.9-class solar flare that occurred on January 18 at 18:09 UT (Figure 1) generated a very fast solar storm directed towards Earth, causing a geomagnetic storm that began on […]

First spectrum for the optical prototype of the VENSCPEC-U instrument for ESA’s ENVISION mission

December was an eventful month for the development of the VENSPEC-U imaging spectrometer (developed for the ENVISION mission by LATMOS, IRAP, LIRA, and IAA), with the first spectrum from the […]

20.01.2026

Electric discharges detected on Mars for the first time

Electric discharges have for the first time been recorded within the storms and whirlwinds of dust – known as dust devils – that sweep across the surface of Mars. Captured […]

28.11.2025

Solar flares in November 2025: intense storm of energetic particles

Over the past 48 hours, solar activity has been exceptionally intense, characterized by several major class X flares. These events generated significant solar storms directed toward Earth, causing a geomagnetic […]

20.11.2025

Jupiter: natural regulators maintain the balance of its magnetized plasma disk

Around Jupiter, a gigantic disk of magnetized plasma undergoes constant disturbances. How does it maintain its balance? Thanks to the Juno mission, a CNRS Earth & Universe research team has […]

18.11.2025

What goes round comes around! Inward propagating plasma parcels spotted at Jupiter

Jupiter and Saturn carve out gigantic magnetic cavities in the solar wind called magnetospheres. These cavities are filled with plasma originating from the intense volcanic activity of Jupiter’s moon Io […]

28.10.2025

MicroLIBS: a small French instrument with big ambitions for Mars exploration

Following the success of French contributions to NASA’s Mars rovers, CNES and IRAP are developing a miniaturized version of these instruments for future Mars and Moon missions. If you follow […]

08.10.2025

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