News
NASA has deployed a small dome on Mars to protect its “marsquake” detector
Before NASA’s InSight lander gathers data on Martian surface vibrations, aka “marsquakes”, it needs to protect its seismographic instrument from the winds and temperature changes during its stay on the red planet. Since wild temperature swings on Mars can mean fluctuations of about 170 degrees Farenheit over the course of a Martian day (sol), contractions and expansions of the seismometer were a problem needing to be addressed. To do that, an instrument shield was designed which has now been deployed as a first line of defense: It’s a white dome with a chain mail and thermal blanket skirt on the bottom called the “Wind and Thermal Shield”. After a successful dome deployment on Saturday, another milestone for the craft has been reached, bringing InSight’s team one step closer to understanding the secrets of the planet’s early formative years by studying its core.
InSight (short for “Interior Exploration using Seismic Investigations, Geodesy and Heat Transport”) was launched aboard an Atlas rocket in California on May 5, 2018, arriving at its destination on November 26, 2018. After a perfect live-streamed Martian surface landing shortly thereafter, Earthlings were treated to a (slightly dusty) photo taken by one of InSight’s on-board cameras, providing visual confirmation of the arrival. In the following days and weeks, ‘selfies’ along with other goodies were sent, such as the sound of Martian wind, as the craft meticulously placed its seismometer on the ground and continued its preparation for its full science mission of studying the heart of Mars as well as its atmosphere and weather patterns.
In addition to a protective dome, InSight’s seismometer itself adjusts for the changing Martian surface. As some parts expand and contract, other parts do the reverse to balance out the effect. Inside the dome, the seismometer is also contained in a titanium, vacuum-sealed container, the combination of which helps insulate the instrument even further from environmental hazards. The high-carbon dioxide content of Mars’s atmosphere is slow to conduct heat under the planet’s low pressure environment, further protecting InSight’s mission from local damaging effects.
Two tiny history-making satellites, collectively named MarCo, joined InSight on its journey to Mars. These briefcase-sized CubeSats’ initial job of demonstrating their relay capabilities during the craft’s landing event successfully sent data back to scientists on Earth much quicker than they would have received without them (near real-time, actually). Due to transmission delays and the locations of other satellites already orbiting the planet, InSight’s short journey to the surface may have taken hours for scientists on Earth to confirm otherwise. One of the MarCo satellites even sent back a photo of Mars as it flew by the planet, the low-cost mission itself representing a hopeful outlook on the future of deep space exploration. NASA has not made contact with the two tiny travellers since January 4, 2019, however, and both craft are now located over a million miles past Mars in Sun-centric orbits.
Now that InSight’s seismometer is on the surface and protected, it will proceed to deploy its heat flow probe next week. Essentially, this means the craft will drill almost 16 feet into the Martian surface and measure the heat of the planet’s interior. The goal of this research is to determine whether Mars is made of the same stuff as the Earth and the Moon, potentially answering questions about all of the planetary bodies’ evolution. Stay tuned!
Elon Musk
Brazil Supreme Court orders Elon Musk and X investigation closed
The decision was issued by Supreme Court Justice Alexandre de Moraes following a recommendation from Brazil’s Prosecutor-General Paulo Gonet.
Brazil’s Supreme Federal Court has ordered the closure of an investigation involving Elon Musk and social media platform X. The inquiry had been pending for about two years and examined whether the platform was used to coordinate attacks against members of the judiciary.
The decision was issued by Supreme Court Justice Alexandre de Moraes following a recommendation from Brazil’s Prosecutor-General Paulo Gonet.
According to a report from Agencia Brasil, the investigation conducted by the Federal Police did not find evidence that X deliberately attempted to attack the judiciary or circumvent court orders.
Prosecutor-General Paulo Gonet concluded that the irregularities identified during the probe did not indicate fraudulent intent.
Justice Moraes accepted the prosecutor’s recommendation and ruled that the investigation should be closed. Under the ruling, the case will remain closed unless new evidence emerges.
The inquiry stemmed from concerns that content on X may have enabled online attacks against Supreme Court justices or violated rulings requiring the suspension of certain accounts under investigation.
Justice Moraes had previously taken several enforcement actions related to the platform during the broader dispute involving social media regulation in Brazil.
These included ordering a nationwide block of the platform, freezing Starlink accounts, and imposing fines on X totaling about $5.2 million. Authorities also froze financial assets linked to X and SpaceX through Starlink to collect unpaid penalties and seized roughly $3.3 million from the companies’ accounts.
Moraes also imposed daily fines of up to R$5 million, about $920,000, for alleged evasion of the X ban and established penalties of R$50,000 per day for VPN users who attempted to bypass the restriction.
Brazil remains an important market for X, with roughly 17 million users, making it one of the platform’s larger user bases globally.
The country is also a major market for Starlink, SpaceX’s satellite internet service, which has surpassed one million subscribers in Brazil.
Elon Musk
FCC chair criticizes Amazon over opposition to SpaceX satellite plan
Carr made the remarks in a post on social media platform X.
U.S. Federal Communications Commission (FCC) Chairman Brendan Carr criticized Amazon after the company opposed SpaceX’s proposal to launch a large satellite constellation that could function as an orbital data center network.
Carr made the remarks in a post on social media platform X.
Amazon recently urged the FCC to reject SpaceX’s application to deploy a constellation of up to 1 million low Earth orbit satellites that could serve as artificial intelligence data centers in space.
The company described the proposal as a “lofty ambition rather than a real plan,” arguing that SpaceX had not provided sufficient details about how the system would operate.
Carr responded by pointing to Amazon’s own satellite deployment progress.
“Amazon should focus on the fact that it will fall roughly 1,000 satellites short of meeting its upcoming deployment milestone, rather than spending their time and resources filing petitions against companies that are putting thousands of satellites in orbit,” Carr wrote on X.
Amazon has declined to comment on the statement.
Amazon has been working to deploy its Project Kuiper satellite network, which is intended to compete with SpaceX’s Starlink service. The company has invested more than $10 billion in the program and has launched more than 200 satellites since April of last year.
Amazon has also asked the FCC for a 24-month extension, until July 2028, to meet a requirement to deploy roughly 1,600 satellites by July 2026, as noted in a CNBC report.
SpaceX’s Starlink network currently has nearly 10,000 satellites in orbit and serves roughly 10 million customers. The FCC has also authorized SpaceX to deploy 7,500 additional satellites as the company continues expanding its global satellite internet network.
Energy
Tesla Energy gains UK license to sell electricity to homes and businesses
The license was granted to Tesla Energy Ventures Ltd. by UK energy regulator Ofgem after a seven-month review process.
Tesla Energy has received a license to supply electricity in the United Kingdom, opening the door for the company to serve homes and businesses in the country.
The license was granted to Tesla Energy Ventures Ltd. by UK energy regulator Ofgem after a seven-month review process.
According to Ofgem, the license took effect at 6 p.m. local time on Wednesday and applies to Great Britain.
The approval allows Tesla’s energy business to sell electricity directly to customers in the region, as noted in a Bloomberg News report.
Tesla has already expanded similar services in the United States. In Texas, the company offers electricity plans that allow Tesla owners to charge their vehicles at a lower cost while also feeding excess electricity back into the grid.
Tesla already has a sizable presence in the UK market. According to price comparison website U-switch, there are more than 250,000 Tesla electric vehicles in the country and thousands of Tesla home energy storage systems.
Ofgem also noted that Tesla Motors Ltd., a separate entity incorporated in England and Wales, received an electricity generation license in June 2020.
The new UK license arrives as Tesla continues expanding its global energy business.
Last year, Tesla Energy retained the top position in the global battery energy storage system (BESS) integrator market for the second consecutive year. According to Wood Mackenzie’s latest rankings, Tesla held about 15% of global market share in 2024.
The company also maintained a dominant position in North America, where it captured roughly 39% market share in the region.
At the same time, competition in the energy storage sector is increasing. Chinese companies such as Sungrow have been expanding their presence globally, particularly in Europe.
Brazil Supreme Court orders Elon Musk and X investigation closed
FCC chair criticizes Amazon over opposition to SpaceX satellite plan
