Connect with us

News

SpaceX’s Falcon Heavy likely to launch NASA telescope after ULA skips competition

Published

on

On the heels of what will likely be NASA’s most significant telescope launch for at least a decade, the space agency appears to be about to select the launch provider for its next most expensive space telescope – a contract that SpaceX seems all but guaranteed to win.

Tory Bruno, CEO of the United Launch Alliance (ULA), revealed on February 15th that SpaceX’s chief competitor won’t even attempt to compete for the contract to launch NASA’s Nancy Grace Roman Space Telescope (NGRST; formerly the Wide-Field Infrared Survey Telescope or WFIRST). Named after Nancy Roman, who played a foundational role in the creation and launch of NASA’s famous Hubble Space Telescope, the Roman Space Telescope could potentially be the second most expensive NASA spacecraft launched this decade.

WFIRST was made possible when the US National Reconnaissance Office (NRO) chose to donate one of two Hubble-class spy telescopes it had merely sitting around and gathering dust to NASA in the mid-2010s. From a mechanical perspective, the telescope will be very similar to Hubble. However, in the decades since HST’s launch, electronics and sensor technology have dramatically improved, allowing NASA to pack instruments capable of simultaneously imaging 100 times the field of view HST is capable of into a similar package.

Additionally, instead of the Hubble’s primary focus on ultraviolet and visible wavelengths, the Roman Space Telescope will observe in infrared wavelengths, making it a perfect complement to the brand-new James Webb Space Telescope (JWST), which is also exclusively focused on the infrared spectrum. Combined, they could operate hand in hand, with NGRST acting like a surveyor or scout and JWST enabling a much closer look at noteworthy discoveries. Additionally, thanks to the inclusion of an unprecedentedly capable in-space coronagraph instrument, NGRST will be able to block out the light of stars, making it a game-changing tool for exoplanet discovery – exoplanets that JWST may then be able to image in even more detail with its much larger mirror.

The Roman Space Telescope has the potential to image a far larger portion of the sky far more frequently than Hubble, despite having an almost identical mirror. (NASA)

The telescope must first be built and then make it to orbit, however. Expected to weigh at least 4.2 tons (~9250 lb) and designed to operate at the L2 Sun-Earth Lagrange point hundreds of thousands of miles from our planet, only large American rockets are an option for the $4.3 billion Roman Space Telescope’s launch. After a recent delay, that launch has slipped to no later than May 2027. However, NASA appeared to be in the final stages of selecting a launch provider as of late last month [PDF], meaning that the space agency may not be able to take advantage of potential launch options planned to debut over the next few years.

That includes Blue Origin’s New Glenn and Relativity Space’s Terran R. However, even ULA’s Vulcan Centaur rocket appears to have been precluded due to rules that generally mean that only rockets certified for NASA launches today can be awarded a contract to launch a high-value spacecraft. As such, while there is a good chance that one or all of the above rockets will have launched repeatedly and potentially achieved NASA LSP certification by 2027, they have little hope of winning a 2022 competition for a 2027 launch when facing a competitor with a rocket that’s already certified.

Europa Clipper’s launch services competition is likely a near-identical demonstration of how NGRST’s own launch competition will go down. (NASA)

In this case, that competitor is SpaceX, whose Falcon Heavy rocket is certified for even the most risk-averse NASA LSP (Launch Service Program) missions. In just the last two years, SpaceX has won contracts to launch NASA’s Psyche asteroid explorer (Aug 2022), VIPER Moon rover (Q4 2023), GOES-U weather satellite (Q2 2024), Europa Clipper (Q4 2024), and the PPE and HALO modules of the Gateway lunar space station (Q4 2024). In fact, because ULA has already promised all of its remaining Delta IV Heavy and Atlas V rockets and because ULA’s Vulcan and Blue Origin’s New Glenn have yet to launch at all, SpaceX is actually the only US launch provider with rockets that are both available for future NASA launches and certified to launch and compete for them.

For some upcoming missions, it’s possible that NASA will wait much closer to the launch date in order to ensure a more competitive environment, but that’s not always possible if the design of an exceptionally sensitive payload (like a large space telescope) must be optimized for a specific vehicle. In the case of the Roman Space Telescope, that means that without a major departure from established rules and norms, SpaceX’s Falcon Heavy rocket is all but guaranteed to win the contract to launch it.

Advertisement
-

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

Advertisement
Comments

Elon Musk

Why Tesla Roadster unveiling delay might have nothing to do with it flying

Published

on

tesla roadster elon musk flying
Credit: Grok

Tesla announced on Monday that the Roadster event scheduled for today would be postponed due to the need for it to be held outside.

Less than 24 hours later, CEO Elon Musk broadened that by stating it was due to high winds, immediately sending everyone into a frenzy over the Roadster’s potential ability to fly.

And realistically, it could definitely have to do with it flying, hovering, or hopping; whatever Tesla has in mind for this demonstration could not be impacted by wind. However, it might have nothing to do with the vehicle flying whatsoever, and instead could be a simple precaution, as the Roadster is a very unique vehicle with some already official specs that are just mind-blowing.

Tesla will very, very likely be showcasing both the acceleration rate and potentially even a top speed demo at the event in Waco. Both of these demonstrations, performed with a vehicle that has such incredibly fast metrics, could easily be impacted by wind as well.

Tesla Roadster event requires restricted airspace, and the FAA obliges

Top Speed Demo

At high speeds, aerodynamic forces are already overwhelmingly present. A crosswind or sudden gust adds a layer of sideways force that the tires must counter with slip angle. On a short demo course, that force can shove the car off the intended line, especially in a light car with a low frontal area and little mass to resist the push.

Electric cars, due to their battery packs, have an advantage of an extremely low center of gravity, giving them extra stability. However, the speeds at which the Roadster could travel at the demo could spell some issues if crosswinds are present.

Gusts are worse than a steady wind because the load changes faster than a driver can smoothly correct. That shows up as weaving or a late correction. Headwinds and tailwinds can also spell disaster. Headwinds cut a measured top speed but raise the power needed to get there or maintain it. Meanwhile, a tailwind can inflate the top speed, and downforce issues could become more noticeable.

Wind also loads the body unevenly. A low car can feel light on the upwind side or see a sudden change in downforce if the gust hits a wing or diffuser at an angle. Tire temperature and pressure might stay near a normal level, but lateral grip can be lost as the vehicle is spent fighting the wind.

Acceleration Demo

Launch and 0-60 MPH runs are shorter, so the car spends less time exposed to forces that could cause things to go awry. However, the first second is very sensitive, as a crosswind at launch could yaw the car before speed builds and prior to aerodynamic impact being too great. The driver will be required to correct traction control or manage how much the wheels are spinning, which will likely be corrected automatically by some sort of traction control system within the Roadster (we are fairly certain Tesla will implement something brilliant with it).

These things could cause an unstable run.

A headwind would increase drag as speed rises, while a tailwind would do the opposite. Meanwhile, surface effects, like wind-driven dust, light debris, or even rain, could reduce grip at the exact moment the tires are asked for peak longitudinal force. Standing water plus a crosswind is a common reason an acceleration attempt might be scrapped.

Flying or Not

No matter what Tesla has in store for the Roadster, waiting for ideal conditions is a great idea. People who follow and support the company, along with the engineers involved in the Roadster program, have been waiting nine years since the last unveiling for this moment. Everything should be ideal.

Some speculate that it’s just not ready, and that’s ridiculous. Why would Tesla even schedule the event — albeit prematurely — after nine years if it was not ready? Why would they jump the gun now?

We were all excited for today, but it truly is the most ideal thing in the world to wait two more weeks so everything, including the weather, can be perfect. The delay is simply worth it. But Tesla, seriously, make this the last one.

Continue Reading

Elon Musk

SpaceX nails “Lucky 13” astronaut launch, leaning into Tesla tradition and superstition

SpaceX launched Crew-13 astronauts to the ISS Thursday, setting up a record fast Dragon docking.

Published

on

By

Crew Dragon sits atop Falcon 9 at sunrise on Cape Canaveral's pad 40, less than a day before four astronauts are set to launch to the ISS. (Credit: SpaceX)

SpaceX launched NASA’s Crew-13 mission to the International Space Station on Thursday morning, getting four astronauts to orbit despite a forecast of thunderstorms and gusty winds that had threatened to push the flight to Friday.

Falcon 9 lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station at 11:10 a.m. ET carrying Dragon Grace, NASA confirmed. On board are NASA commander Jessica Watkins, NASA pilot Luke Delaney, Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov. The first stage booster, B1101, landed at Landing Zone 40 beside the pad on its third flight after previously supporting Crew-12 and a Starlink mission.

It was the first spaceflight for Delaney, Kutryk and Teteryatnikov. Watkins, who flew on Crew-4 in 2022, became the first NASA astronaut to launch aboard a Crew Dragon twice.

Before launch, the crew rode to the pad in Teslas, a tradition on NASA’s SpaceX crew flights since 2020. This time the cars carried specialty plates reading “Lucky 13.” Watkins said the mission patch leans into the number on purpose, as a nod to Apollo 13 and the resilience of that crew.

Grace is now on a short trip to the station. Docking at the forward port of the Harmony module is scheduled for about 7 p.m. ET, roughly 7 hours and 50 minutes after liftoff, which Space.com notes would be the fastest Crew Dragon transit to the ISS yet. Most Dragon flights take around 15 to 24 hours to catch the station. Hatch opening is planned for 8:25 p.m. ET.

The launch came more than two weeks later than originally planned. An oxidizer leak was found in Grace’s propulsion system in August, and NASA and SpaceX added time for tests. That pushed back the return of Crew-12, which has been aboard the station since February and is now set to splash down off Southern California next week. Crew-13 is expected to stay about six months.

SpaceX rescue mission for stranded ISS astronauts nears end — Here’s when they’ll return home

SpaceX already holds NASA orders for crew rotations through Crew-17, while Boeing is preparing an uncrewed Starliner flight to the station as early as December.

Crew-13 was only the first of three SpaceX launches planned for Thursday, as Teslarati previewed on Wednesday. A Falcon 9 launched its Transporter-18 mission from California today, where Google will be launching its first orbital artificial intelligence (AI) test satellite. Meanwhile, Falcon Heavy is set to launch the classified NROL-97 mission for the National Reconnaissance Office from Launch Complex 39A at 11:53 p.m. ET. Its two side boosters will return to Landing Zones 1 and 2, which means Central Florida could hear up to three sonic booms in a single day. The busy stretch follows Starship’s Flight 14 on Monday, which reached orbit for the first time.

Continue Reading

News

Tesla moves forward on Wireless Charging for vehicles

Published

on

Credit: Tesla | X

Tesla has moved its Wireless Charging efforts for its electric vehicles forward, as it had a new patent published today, one that it submitted back in March.

The patent describes a system for detecting foreign objects on the wireless charging pad under varying temperatures, aiming to mitigate any undesired results that could come from something being on top of the charging pad.

The abstract of the patent states:

“The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”

The object detection system will utilize a set of inductive coils included in resonant tanks, and “excite the resonant tank using signals in a range of frequencies including or near a nominal resonant frequency of the tanks.” Metal can be detected by an increase in the coil’s resistance and a decrease in the coil’s inductance.

By analyzing shifts or disruptions in resonant frequencies and output magnitudes, the system can detect foreign objects. These types of safeguards need to be implemented through the normal operation of the charging pads.

Tesla says its Cybercab wireless charging efficiency is ‘well above 90%’

Tesla plans to utilize wireless charging with Cybercab and Robotaxi-enabled units to help streamline the fully autonomous experience from A to Z. The last thing the company wants to do is have any sort of small obstruction preventing the rider from experiencing Robotaxi as intended.

Continue Reading