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Solar Orbiter heads to the sun in mission to unravel its mysteries, takes first space measurements

ESA’s Solar Orbiter will be one of two complementary spacecraft studying the Sun at close proximity: it will join NASA’s Parker Solar Probe, which is already engaged in its mission. (Solar Orbiter: ESA/ATG medialab; Parker Solar Probe: NASA/Johns Hopkins APL)

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The European Space Agency’s (ESA) Solar Orbiter spacecraft is traveling through the cosmos. Its destination: the inner solar system. The 3,900-lb. (1,800-kg) spacecraft will work in tandem with NASA’s Parker Solar Probe to unravel solar mysteries that have puzzled scientists for decades.

The probe will spend the next two years cruising towards the sun and using both Venus and the Earth to slingshot itself out of the ecliptic plane — the area of space where all planets orbit. This vantage point will allow the spacecraft to eventually look down upon the sun’s polar regions and snap the very first images of this crucial area.

“We believe this area holds the keys to unraveling the mysteries of the sun’s activity cycle,” Daniel Müller, the mission’s ESA project scientist, said in a prelaunch science briefing on Feb. 7.

The Solar Orbiter and its suite of 10 specialized instruments will act as a mobile laboratory in space, tracking eruptions of solar materials from their origin on the surface of the sun, out into space, and all the way down to Earth.

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Solar Orbiter will make numerous gravity assist flybys of Venus (and one of Earth) over the course of its mission to adjust its orbit, bringing it closer to the Sun and high enough to see its poles. Credit: ESA

“Our entire solar system is governed by the activity that comes from the sun,” Nicky Fox, director of NASA’s Heliophysics Division said during the mission’s science briefing. “There’s a continually streaming kind of soup of energetic particles that moves away from the sun and bathes all the planets. We call that the solar wind.”

Together, the solar wind and the sun’s magnetic field create a huge bubble known as the heliosphere, which shields the Earth from powerful interstellar radiation called cosmic rays.

Coronal mass ejections (CMEs) are energetic eruptions of solar material and when they make it to Earth, the solar particles can interact with our planet’s magnetic field to produce powerful electromagnetic fluctuations. Known as geomagnetic storms, they are troublesome because they’re known to disrupt technologies like communications systems and even power grids.

Additionally, they can also be dangerous to astronauts and satellites in space.  Solar Orbiter will help mitigate damages from these types of storms by helping scientists better predict when they might happen.

Solar Orbiter launched atop an Atlas V rocket on Feb. 9 at 11:03 p.m. EST (0403 GMT on Feb. 10). About an hour after liftoff, the spacecraft separated from the rocket’s upper stage as planned, extended its solar arrays and sent a signal back to Earth that it had power.

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The spacecraft then spent the next several days deploying its communication antennas as well as its instrument boom.

A view of Solar Orbiter’s instruments. The magnetometer and solar wind analyzers are located on the boom to help prevent electromagnetic disturbances from the spacecraft. Credit: ESA

Its first three months are what’s known as a commissioning phase, during which ground controllers will check out the onboard instruments to make sure everything is in working order. Two years from now, the spacecraft will be close enough to take its first detailed measurements of the sun, but we didn’t have to wait that long for the first bits of science data to come in.

Solar Orbiter carries ten scientific instruments, four in situ (meaning they measure the environment around the spacecraft) and six remote-sensing imagers (which will measure the sun’s properties). The majority of the in situ instruments are located on a 4.4-m-long extendable boom. They study the electromagnetic characteristics of the solar wind, as well as the stream of charged particles flowing from the Sun.

“We measure magnetic fields thousands of times smaller than those we are familiar with on Earth,” Tim Horbury, principal investigator for the magnetometer (MAG) instrument on the Solar Orbiter, said in the statement. “Even currents in electrical wires make magnetic fields far larger than what we need to measure. That’s why our sensors are on a boom, to keep them away from all the electrical activity inside the spacecraft.”

Designed to measure the strength and direction of the magnetic field, the MAG (which is composed of two sensors) was the first instrument to send back data.

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The MAG instrument took measurements before, during and after the deployment of the boom. Credit: ESA

“The data we received shows how the magnetic field decreases from the vicinity of the spacecraft to where the instruments are actually deployed,” Horbury said in the same statement. “This is an independent confirmation that the boom actually deployed and that the instruments will, indeed, provide accurate scientific measurements in the future.”

The boom is a pole made constructed out of titanium and carbon-fiber that houses three instruments, which are so sensitive that they need to be kept away from the main body of the spacecraft to avoid potential electromagnetic disturbances.

“Measuring before, during, and after the boom deployment helps us to identify and characterize signals that are not linked to the solar wind, such as perturbations coming from the spacecraft platform and other instruments,” Matthieu Kretzschmar, lead co-investigator of the high-frequency magnetometer of the Radio and Plasma Waves instrument (RPW) instrument, which is also located on the boom and will study properties of the solar wind.

The team will continue to calibrate the spacecraft’s suite of instruments and will begin collecting official science data as early as May.

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Elon Musk

SpaceX reportedly discussing merger with xAI ahead of blockbuster IPO

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Credit: SpaceX/X

In a groundbreaking new report from Reuters, SpaceX is reportedly discussing merger possibilities with xAI ahead of the space exploration company’s plans to IPO later this year, in what would be a blockbuster move.

The outlet said it would combine rockets and Starlink satellites, as well as the X social media platform and AI project Grok under one roof. The report cites “a person briefed on the matter and two recent company filings seen by Reuters.”

Musk, nor SpaceX or xAI, have commented on the report, so, as of now, it is unconfirmed.

With that being said, the proposed merger would bring shares of xAI in exchange for shares of SpaceX. Both companies were registered in Nevada to expedite the transaction, according to the report.

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On January 21, both entities were registered in Nevada. The report continues:

“One of them, a limited liability company, lists SpaceX ​and Bret Johnsen, the company’s chief financial officer, as managing members, while the other lists Johnsen as the company’s only officer, the filings show.”

The source also stated that some xAI executives could be given the option to receive cash in lieu of SpaceX stock. No agreement has been reached, nothing has been signed, and the timing and structure, as well as other important details, have not been finalized.

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SpaceX is valued at $800 billion and is the most valuable privately held company, while xAI is valued at $230 billion as of November. SpaceX could be going public later this year, as Musk has said as recently as December that the company would offer its stock publicly.

SpaceX IPO is coming, CEO Elon Musk confirms

The plans could help move along plans for large-scale data centers in space, something Musk has discussed on several occasions over the past few months.

At the World Economic Forum last week, Musk said:

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“It’s a no-brainer for building solar-powered AI data centers in space, because as I mentioned, it’s also very cold in space. The net effect is that the lowest cost place to put AI will be space and that will be true within two to three years, three at the latest.”

He also said on X that “the most important thing in the next 3-4 years is data centers in space.”

If the report is true and the two companies end up coming together, it would not be the first time Musk’s companies have ended up coming together. He used Tesla stock to purchase SolarCity back in 2016. Last year, X became part of xAI in a share swap.

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Elon Musk

Tesla CEO Elon Musk trolls budget airline after it refuses Starlink on its planes

“I really want to put a Ryan in charge of Ryan Air. It is your destiny,” Musk said.

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elon musk ryanair

Tesla CEO Elon Musk trolled budget airline Ryanair on his social media platform X this week following the company’s refusal to adopt Starlink internet on its planes.

Earlier this week, it was reported that Ryanair did not plan to install Starlink internet services on its planes due to its budgetary nature and short flight spans, which are commonly only an hour or so in total duration.

Initially, Musk said installing Starlink on the company’s planes would not impact cost or aerodynamics, but Ryanair responded on its X account, which is comical in nature, by stating that a propaganda it would not fall for was “Wi-Fi on planes.”

Musk responded by asking, “How much would it cost to buy you?” Then followed up with the idea of buying the company and replacing the CEO with someone named Ryan:

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Polymarket now states that there is an 8 percent chance that Musk will purchase Ryanair, which would cost Musk roughly $36 billion, based on recent financial data of the public company.

Although the banter has certainly crossed a line, it does not seem as if there is any true reason to believe Musk would purchase the airline. More than anything, it seems like an exercise of who will go further.

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However, it is worth noting that if something is important enough, Musk will get involved. He bought Twitter a few years ago and then turned it into X, but that issue was much larger than simple banter with a company that does not want to utilize one of the CEO’s products.

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In a poll posted yesterday by Musk, asking whether he should buy Ryanair and “restore Ryan as their rightful ruler.” 76.5 percent of respondents said he should, but others believe that the whole idea is just playful dialogue for now.

But it is not ideal to count Musk out, especially if things continue to move in the direction they have been.

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SpaceX shades airline for seeking contract with Amazon’s Starlink rival

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Credit: Richard Angle

SpaceX employees, including its CEO Elon Musk, shaded American Airlines on social media this past weekend due to the company’s reported talks with Amazon’s Starlink rival, Leo.

Starlink has been adopted by several airlines, including United Airlines, Qatar Airways, Hawaiian Airlines, WestJet, Air France, airBaltic, and others. It has gained notoriety as an extremely solid, dependable, and reliable option for airline travel, as traditional options frequently cause users to lose connection to the internet.

Many airlines have made the switch, while others continue to mull the options available to them. American Airlines is one of them.

A report from Bloomberg indicates the airline is thinking of going with a Starlink rival owned by Amazon, called Leo. It was previously referred to as Project Kuiper.

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American CEO Robert Isom said (via Bloomberg):

“While there’s Starlink, there are other low-Earth-orbit satellite opportunities that we can look at. We’re making sure that American is going to have what our customers need.”

Isom also said American has been in touch with Amazon about installing Leo on its aircraft, but he would not reveal the status of any discussions with the company.

The report caught the attention of Michael Nicolls, the Vice President of Starlink Engineering at SpaceX, who said:

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“Only fly on airlines with good connectivity… and only one source of good connectivity at the moment…”

CEO Elon Musk replied to Nicolls by stating that American Airlines risks losing “a lot of customers if their connectivity solution fails.”

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There are over 8,000 Starlink satellites in orbit currently, offering internet coverage in over 150 countries and territories globally. SpaceX expands its array of satellites nearly every week with launches from California and Florida, aiming to offer internet access to everyone across the globe.

SpaceX successfully launches 100th Starlink mission of 2025

Currently, the company is focusing on expanding into new markets, such as Africa and Asia.

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