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NASA’s next mission could study one of these bizarre moons

Artist's concept of the solar system (not to scale). Credit: NASA

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Venus, Triton, or Io? Where would you send NASA’s newest mission?

The space agency is in the midst of planning out its next Discovery class mission, a lower cost exploration program, capped at $500 million (not including launch costs). To that end, NASA has selected four finalists and one — or perhaps two — will ultimately be chosen from the quartet to make it to the launch pad.

“These selected missions have the potential to transform our understanding of some of the solar system’s most active and complex worlds,” Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate, said in a statement Thursday (Feb. 13), when the finalists were announced.

“Exploring any one of these celestial bodies will help unlock the secrets of how it, and others like it, came to be in the cosmos,” he added.

The teams behind the four mission concepts will each receive $3 million to continue developing their ideas over the next nine months. NASA officials will then evaluate the prospects and select up to two missions for continued development.

In previous years, many of the choices were either very asteroid heavy or Mars centric. But this year, its Venus’ turn. Two of the four mission concepts are all about exploring Earth’s so-called hellish twin.

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The proposed VERITAS mission seeks to map the hidden surface of Venus in unprecedented detail. Credit: NASA/JPL-Caltech

The DAVINCI Plus (Deep Atmosphere Venus Investigation of Noble gases, Chemistry and Imaging Plus) mission would send a probe down through the thick Venusian air, in an effort to better understand how the planet’s atmosphere has changed over time.

The VERITAS (Venus Emissivity, Radio Science, InSAR, Topography and Spectroscopy) mission would map Venus’ surface in detail from orbit. These measurements would help scientists deduce whether or not Venus has plate tectonics as we see on Earth and if there are active volcanoes on the planet’s surface.

Shifting the focus to another volcano world, the Io Volcano Observer (IVO) mission, would focus on the Jovian moon, Io, and observe it up close through a series of close flybys.

We know that Io’s volcanism is driven in part by the other Galilean moons pulling and tugging on the rocky moon, which keeps its insides churning. But what researchers don’t know is exactly how these tidal forces affect the evolution of rocky bodies. Here’s where IVO comes in.

Should NASA send a probe to flyby Neptune’s largest moon, Triton? NASA is exploring the idea. Credit: NASA/JPL-Caltech

Lastly, there’s the Trident mission. This mission would be set up similar to the New Horizons flyby of Pluto in 2015. The spacecraft would fly by Neptune’s largest moon, Triton, and study is up close, mapping the surface and trying to gauge whether or not the moon is hiding a subsurface ocean.

You can learn more about all four finalists here.

Established in 1992, NASA’s Discovery Program has supported the development and implementation of over 20 missions and instruments. Some of those missions include the Kepler space telescope, the Mars InSight Lander, the Dawn spacecraft that explored the dwarf planet Ceres and many more.

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Tesla Semi catches fire in California: what we know

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Credit: KTVU

A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.

The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.

There were no injuries reported.

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The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.

However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.

At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.

The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.

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The truck’s driver said that the Semi caught fire, but he did not have an explanation.

An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.

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Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world

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Credit: Tesla

Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.

A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.

“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”

Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.

Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.

Tesla constitutes the following situations as reasonable justifications for activating the feature:

  • You face an immediate threat to your life or personal safety.
  • You must leave the area immediately.
  • Exiting the vehicle is unsafe.
  • Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.

After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.

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Tesla’s Cybercab battery design could make robotaxis even cheaper

Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.

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Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.

Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.

The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.

Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.

The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”

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That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.

The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.

Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.

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