Skip to main content

The sun’s activity is ramping up with more solar flares expected

The sun has been particularly active recently, and this weekend the Earth experienced the effects of a solar storm. The sun recently unleashed a coronal mass ejection (CME) on July 21 that has been traveling through the solar system and created a minor geomagnetic storm as it arrived at Earth.

The Solar Ultraviolet Imager (#SUVI) aboard @NOAA's #GOES16🛰️ saw a stormy Sun on July 21! You can see a #CoronalMassEjection just above the middle of the Sun near the end of this animation (arrow). @NWSSWPC says a G2 (moderate) geomagnetic storm is likely on July 23. pic.twitter.com/bOTt88kg6k

— NOAA Satellites – Public Affairs (@NOAASatellitePA) July 22, 2022

This kind of solar activity is unlikely to affect most people’s everyday lives, but it can affect satellites and make auroras visible in further parts of the globe than is typical. These kinds of solar events are likely to become more frequent in the coming months, according to the National Oceanic and Atmospheric Administration (NOAA) due to the sun’s cycle of activity.

Recommended Videos

G1 (Minor) geomagnetic storming was observed at 23/0359 UTC. A G1 warning is in effect until 23/1800 UTC. pic.twitter.com/93MxPUoTHS

— NOAA Space Weather Prediction Center (@NWSSWPC) July 23, 2022

“The sun’s 11-year activity cycle is ramping back up, meaning phenomena such as CMEs and solar flares are increasing in frequency,” NOAA writes. “Depending on the size and the trajectory of solar eruptions, the possible effects to near-Earth space and Earth’s magnetosphere can cause geomagnetic storms, which can disrupt power utilities and communication and navigation systems. These storms may also cause radiation damage to orbiting satellites and the International Space Station.”

We do now have a new instrument for observing such outbursts, in the form of NOAA’s GOES-18 satellite. Launched by NASA in March this year, this weather observation satellite has already sent back stunning views of our planet taken using its Advanced Baseline Imager instrument. But it also has other instruments on board for observing the sun, including an X-ray and extreme-ultraviolet (EUV) camera. This camera can observe the extremely high temperatures of the sun’s corona to see events like CMEs and solar flares.

First images of the sun captured by GOES-18's SUVI Instrument on July 10, 2022, showing a coronal mass ejection at six different wavelengths.
First images of the sun captured by GOES-18’s SUVI Instrument on July 10, 2022, showing a coronal mass ejection at different wavelengths. NOAA

NOAA recently shared the first images from GOES-18’s Solar Ultraviolet Imager instrument, or SUVI, showing the sun in various extreme ultraviolet channels during a similar coronal mass ejection on July 10. You can see the CME most clearly in the bottom right image, and if you head to NOAA’s website you can see video of the event as well.

GOES-18 is currently undergoing post-launch testing, including checking its instruments before they begin full operations. The satellite is expected to be ready for its operational role in early 2023.

Georgina Torbet
Georgina has been the space writer at Digital Trends space writer for six years, covering human space exploration, planetary…
Water was present in our solar system before the sun formed
This artist’s impression shows the planet-forming disc around the star V883 Orionis. In the outermost part of the disc water is frozen out as ice and therefore can’t be easily detected. An outburst of energy from the star heats the inner disc to a temperature where water is gaseous, enabling astronomers to detect it. The inset image shows the two kinds of water molecules studied in this disc: normal water, with one oxygen atom and two hydrogen atoms, and a heavier version where one hydrogen atom is replaced with deuterium, a heavy isotope of hydrogen.

You might assume that there has always been water on Earth -- that water was there from the very beginning when our planet formed. But scientists increasingly think that water on Earth may have originated elsewhere, and been carried here by comets. However, the water in the comets had to come from somewhere, and astronomers recently made a discovery which could shed light on how that water was found in the solar system.

The researchers used the Atacama Large Millimeter/submillimeter Array (ALMA), a radio telescope array in Chile, to study a planet-forming disc around the star V883 Orionis, looking for water there to see how it would be transported as the disk evolves into planets.

Read more
Still no joy for Lucy’s stuck solar array, NASA is giving up for now
see lucy spacecraft slingshot past earth fly by

NASA has announced it will not be making any further attempts to latch the solar array of its Lucy spacecraft, at least for now. Launched in October 2021 on a mission to visit the Trojan asteroids in the orbit of Jupiter, Lucy had problems deploying one of its two circular arrays, and various attempts to address the issue over the past year have not managed to fix the problem entirely. However, NASA says that the spacecraft should be able to operate on its mission as planned.

Illustration of NASA's Lucy spacecraft making a flyby of Earth. NASA

Read more
SpaceX Dragon spacecraft delivers new solar arrays and more to ISS
The SpaceX Falcon 9 rocket carrying the Dragon cargo craft lifts off from NASA’s Kennedy Space Center to the International Space Station on Nov. 26, 2022.

A SpaceX Dragon spacecraft arrived at the International Space Station this morning, Sunday, November 27, carrying a wide range of scientific experiments as well as a pair of new solar arrays for the station's ongoing power system upgrades. Launched on Saturday, November 26 at 2:20 p.m. ET using a Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida, the Dragon traveled yesterday afternoon and throughout the night to dock with the station at 7:39 a.m. ET this morning.

https://twitter.com/NASA/status/1596848596854665218

Read more