News
SpaceX CEO Elon Musk talks Starship space telescopes, artificial gravity
In his latest batch of tweets, SpaceX CEO Elon Musk says that the company is already thinking about the many potential ways its next-generation Starship launch vehicle could be used in space.
Already, ideas publicly touted by the SpaceX CEO range from using Cargo Starships to clean up space debris with its mouth-like payload bay to a stripped-down, expendable variant of the rocket to rapidly send massive spacecraft throughout the solar system. Now, Musk says that SpaceX has also considered tethering Starships together in space to create a form of artificial gravity for passengers on multi-month journeys between planets, as well as the possibility of turning entire Starships into all-in-one orbital observatories a magnitude more powerful than Hubble.
Apparently invoked during discussions with astrophysicist and Nobel laureate Saul Perlmutter, at least parts of the physics community are already considering the possibilities offered by using Starship as a sort of foundation or spacecraft bus that could carry and operate vast scientific payloads. While Starship has already been officially floated several times as a serious contender for launch services for major future missions, this concept would instead see Starship function as the spacecraft itself.
As of 2021, Starship has yet to reach space or orbit once, but SpaceX isn’t far from that milestone. Eventually, perhaps just a few years from now, Starship will have successfully launched to and operated in orbit dozens or even hundreds of times and become a mature and reliable spacecraft.
At that point, it wouldn’t be out of the question to entrust Starships themselves to serve as long-lasting scientific spacecraft, exploiting a ‘bus’ that could offer abundant power, propulsion, thermal management, navigation, and communications capabilities to any ‘hosted’ payloads. That includes extensively modifying Starships on the ground to create vast space observatories, among numerous other possibilities.
Given Starship’s low production cost, 9-meter (~30 ft) diameter, and nominal ability to deliver at least 100 metric tons (~220,000 lb) of payload to low Earth orbit (LEO), it’s not inconceivable that ships could be outfitted with massive telescopes and scientific instruments. Perhaps more importantly, drastically reduced payload constraints (more than an order of magnitude relative to the Hubble or James Webb telescopes) could allow major innovation in spacecraft/instrument design, radically lowering costs while still improving reliability, redundancy, and performance.
Meanwhile, Musk says that SpaceX has also considered tethering crewed Starships together and spinning them around the center of that tether to create artificial gravity for crewmembers on months-long journeys between Earth, Mars, and other planets. Among fan communities, the tethered gravity concept has been circulating ever since SpaceX first announced Starship in 2016. Loosely researched by NASA and other institutions for decades, no real experimental efforts – save for a single halting test during a 1960s Gemini mission – have ever been pursued.
For Starship, orbital refueling could easily allow SpaceX to cut crewed Earth-Mars transit time to 100 days or less – subjecting astronauts to significantly less time in microgravity than those that crew the International Space Station (ISS). The value proposition of artificial gravity on 3-month cruises is likely substantially less clear-cut given the far-reaching complexity and modifications required to make such a system functional and make Starships compatible.
Regardless, Musk rather cryptically says that SpaceX has considered the concept, though he didn’t elaborate on whether the company ultimately decided to drop the subject or pursue it further.
Tesla is starting to prepare for the launch of the Optimus robot in its smartphone app, new coding strings show. Elon Musk has referred to Optimus as what will be the greatest-selling product of any kind of all time, and now, Tesla is getting ready for its launch.
Tesla’s smartphone app had several first-time mentions of the Optimus program, according to Tesla App Updates, who intially reported on the appearance. Here’s what they found:
A Dedicated “Robot” Phone Key Authentication
Tesla is working on a Bluetooth Low Energy, or BLE, authentication that is specifically for robots. This does not only apply to Optimus, though, as Robotaxi, which is Tesla’s autonomous ride-hailing platform, might also identify vehicles within the fleet as robots as well.
Tesla shows rapid teardown of Model S and X lines, paving the way for Optimus at Fremont
Essentially, pairing your phone as a key to anything Tesla identifies as a robot to a “whitelist” of authorized devices. Optimus, Robotaxi, or other products that fall into this category will only respond if the device trying to communicate with it is authorized.
This is a great security feature that will eliminate at least face-value and low-level threats.
Home Data Collection and System Alerts
This appears to be somewhat of a neural network for Optimus within your house. There will be a dedicated screen that asks for consent to collect both video and spatial data while Optimus performs in-home tasks. Everything from vacuuming, washing dishes, dusting, and other activities will be tracked.
There will also be a comprehensive alert system that will track everything from low battery to mechanical issues.
Other Changes
Most of the changes tracked in this particular app update are related to Tesla’s 2026 Summer Update, and include things such as image assets for new features, a preview of the new custom wraps feature, and other unique features.
You can check out our coverage on what is included with the 2026 Summer Update here:
Tesla reveals 2026 Summer Update with crazy fixes to Nav and more
Tesla (NASDAQ: TSLA) will report its earnings for the second quarter of 2026 this evening after market close, and investors and analysts are waiting anxiously to see what the company will report for the second three-month span of the year.
Analysts have already put out their expectations from a financial standpoint for the company’s second quarter, but what’s unknown is what Tesla plans to discuss during the call.
Financial Expectations
Wall Street consensus expectations put Tesla’s Earnings Per Share (EPS) at $0.53, while revenues are expected to come in around $26.4 billion.
This would compare to an EPS of $0.39 and $22.19 billion compared to Tesla’s Q2 2025. Last quarter, EPS came in at $0.41 on $22.387 billion of revenue. Additionally in Q1, Tesla beat analyst expectations, but shares dropped over 3 percent the following trading day.
What We Expect
In terms of discussions, Tesla earnings are pretty sporadic and depend on a handful of things, including current events, investor questions, and more.
Tesla uses a platform called Say to field questions from investors and analysts. These questions are what will be used during the call. Here are the top 5 from the Retail side and top 3 from the Institutional side:
Retail:
“Tesla has missed short-term guidance on robotaxi 3 earnings reports in a row, from 50% coverage of USA by end of 2025 to most recently 7 new cities in 1H26. What is keeping Tesla back from accomplishing these short term goals that they’ve set for themselves?”
“What are the main constraints to expanding robotaxi operations faster, and how do you see that lining up with Cybercab production?”
“What’s the current status of Optimus Gen 3 production ramp, initial deployment in factories, and external sales timeline/volume for 2027? What tasks can we expect the Optimus to perform by end of 2027?”
“To reward long-term Tesla retail shareholders for their loyalty, can you commit to achieving at least half of the goals outlined in your 2025 compensation plan before considering any offers to acquire or merge Tesla?”
“Why has growth of robotaxi vehicles stalled? When will we see cybercab start customer rides?”
Institutional
“Previously, you’ve said Tesla would lead the R&D while SpaceX would lead production for Terafab. Can you provide an update on how that division of responsibilities is evolving, and any additional clarity on the expected capital contributions from Tesla and SpaceX?”
“For autonomous driving, Tesla’s fleet created a huge data advantage by collecting billions of real-world miles. That advantage doesn’t yet exist for Optimus. How should we think about data availability and its impact on Optimus development?”
“Why is it necessary to limit robotaxi operations within specific zones within cities to start? Will every city have to be rolled out this way?”
Tesla will report earnings for Q2 this evening with the Shareholder Deck at 4 p.m. ET, with the call starting around 5:30 p.m. ET.
Elon Musk
Elon Musk handed Grok something no other AI company can get their hands on
Elon Musk says SpaceX will feed engineering data into Grok’s next model, avoiding restricted material.
Elon Musk said Tuesday that SpaceX will feed its internal engineering data into the next major training run for Grok, the AI model now folded into SpaceX following February’s merger. In a post on X, Musk wrote that SpaceX’s “massive corpus of world-class engineering data,” excluding anything restricted under U.S. arms export law, will be added during supplemental training of what he called the “2T run,” a reference to a roughly two trillion parameter model that would nearly double the parameters behind the latest Grok 4.5 that’s rolling out.
SpaceX’s massive corpus of world-class engineering data (excluding material blocked by ITAR) will be added during supplemental training of the 2T run.
This will dramatically improve Grok’s engineering capabilities. https://t.co/BbQEViFByn
— Elon Musk (@elonmusk) July 21, 2026
The excluded material that Musk is referring to would fall under the International Traffic in Arms Regulations (ITAR), which restricts export of technical data tied to defense and space hardware. That likely rules out propulsion specifics for Merlin and Raptor engines along with guidance and control details for SpaceX’s launch vehicles, but leaves manufacturing knowledge, materials science, and Starlink hardware design on the table.
The announcement extends a pattern that has been building since SpaceX’s Nasdaq debut in June, when the company went public with Grok and xAI’s Colossus supercomputer folded into the pitch to investors.
Days after that listing, SpaceX closed its $60 billion all stock acquisition of coding startup Cursor, giving xAI both enterprise software distribution and a stream of real world developer data to train on. Grok 4.5 launched July 8 running partly on that Cursor training data, with Musk describing it as roughly comparable to Anthropic’s Opus 4.7 but faster and cheaper to run.
Feeding SpaceX’s own engineering data into the next AI model follows the same logic Musk has applied across xAI’s sister companies. Tesla supplies real world driving data and manufacturing expertise, X supplies conversational data, and now SpaceX supplies aerospace engineering data built up since 2002.
Musk did not give a release date for the upcoming AI model, referred to elsewhere as Grok 4.6. He has said the two trillion parameter run is in its final training phase and expected to wrap this week.
Tesla starts preparing for Optimus in its smartphone app
Tesla Q2 Earnings: Here’s what to expect
