Connect with us

Technology

NASA Transmitted a Laser Message to Earth from a Distance of Ten Million Miles

Published

on

The World Wide Web will eventually need to be expanded throughout the cosmos, and NASA has showcased a crucial technological advancement that could make this possible by beaming laser communications over a distance of over 16 million kilometers (10 million miles).

The achievement, made in November 2023, marked the first time that optical communications have been delivered beyond a distance that is roughly 40 times farther than the Moon is from Earth.

While radio waves have historically been used to communicate with far-off spacecraft, higher light frequencies, such as near infrared, provide a significant increase in bandwidth and consequently faster data transfer rates.

‘First light’ refers to the successful establishing of the communication link during the test, which was a component of NASA’s Deep Space Optical Communications (DSOC) experiment.

“Achieving first light is one of many critical DSOC milestones in the coming months, paving the way toward higher-data-rate communications capable of sending scientific information, high-definition imagery, and streaming video in support of humanity’s next giant leap,” stated at the time NASA Headquarters’ director of technology demonstrations, Trudy Kortes.

Similar technology that is integrated into optical fibers is used by all of us for high-speed, ground-based communications; but, in this case, it was modified for usage via outer space to enhance currently used techniques for returning data to Earth.

Engineers can readily transfer infrared light in the form of laser beams. The light will not move much faster as a result of this, but it will be more organized and limited to a small channel. This is more difficult to intercept and uses a lot less power than a dispersion of radio waves.

That does not imply that the task is easy. A superconducting high-efficiency detector array is one of the heavy-duty instruments needed to prepare the data for transmission and translate it at the other end because the data bits are embedded in the photons that the laser emits.

Having the system adjust its placement configuration in real time presents another difficulty. In the most recent test, it took the laser photons fifty seconds to go from the spacecraft to the telescope, and throughout that time, both were traveling at high speed through space.

The Psyche spacecraft is currently on a multi-year journey to explore the asteroid belt between Mars and Jupiter. The laser transceiver responsible for the successful connection is located on board. It established communication with the Californian Palomar Observatory’s Hale Telescope.

Tests will continue to be conducted to ensure that this cutting-edge near-infrared laser communication technology is as trustworthy and quick as it needs to be in preparation for Psyche’s planned flyby of Mars.

“It was a formidable challenge, and we have a lot more work to do, but for a short time, we were able to transmit, receive, and decode some data,” according to Meera Srinivasan, the NASA Jet Propulsion Laboratory’s DSOC operations head.

Technology

Threads uses a more sophisticated search to compete with Bluesky

Published

on

Instagram Threads, a rival to Meta’s X, will have an enhanced search experience, the firm said Monday. The app, which is based on Instagram’s social graph and provides a Meta-run substitute for Elon Musk’s X, is introducing a new feature that lets users search for certain posts by date ranges and user profiles.

Compared to X’s advanced search, which now allows users to refine queries by language, keywords, exact phrases, excluded terms, hashtags, and more, this is less thorough. However, it does make it simpler for users of Threads to find particular messages. Additionally, it will make Threads’ search more comparable to Bluesky’s, which also lets users use sophisticated queries to restrict searches by user profiles, date ranges, and other criteria. However, not all of the filtering options are yet visible in the Bluesky app’s user interface.

In order to counter the danger posed by social networking startup Bluesky, which has quickly gained traction as another X competitor, Meta has started launching new features in quick succession in recent days. Bluesky had more than 9 million users in September, but in the weeks after the U.S. elections, users left X due to Elon Musk’s political views and other policy changes, including plans to alter the way blocks operate and let AI companies train on X user data. According to Bluesky, there are currently around 24 million users.

Meta’s Threads introduced new features to counter Bluesky’s potential, such as an improved algorithm, a design modification that makes switching between feeds easier, and the option for users to select their own default feed. Additionally, it was observed creating Starter Packs, its own version of Bluesky’s user-curated recommendation lists.

Continue Reading

Technology

Apple’s own 5G modem-equipped iPhone SE 4 is “confirmed” to launch in March

Published

on

Tom O’Malley, an analyst at Barclays, recently visited Asia with his colleagues to speak with suppliers and makers of electronics. The analysts said they had “confirmed” that a fourth-generation iPhone SE with an Apple-designed 5G modem is scheduled to launch near the end of the first quarter next year in a research note they released this week that outlines the main conclusions from the trip. That timeline implies that the next iPhone SE will be unveiled in March, similar to when the present model was unveiled in 2022, in keeping with earlier rumors.

The rumored features of the fourth-generation iPhone SE include a 6.1-inch OLED display, Face ID, a newer A-series chip, a USB-C port, a single 48-megapixel rear camera, 8GB of RAM to enable Apple Intelligence support, and the previously mentioned Apple-designed 5G modem. The SE is anticipated to have a similar design to the base iPhone 14.

Since 2018, Apple is said to have been developing its own 5G modem for iPhones, a move that will let it lessen and eventually do away with its reliance on Qualcomm. With Qualcomm’s 5G modem supply arrangement for iPhone launches extended through 2026 earlier this year, Apple still has plenty of time to finish switching to its own modem. In addition to the fourth-generation iPhone SE, Apple analyst Ming-Chi Kuo earlier stated that the so-called “iPhone 17 Air” would come with a 5G modem that was created by Apple.

Whether Apple’s initial 5G modem would offer any advantages to consumers over Qualcomm’s modems, such quicker speeds, is uncertain.

Qualcomm was sued by Apple in 2017 for anticompetitive behavior and $1 billion in unpaid royalties. In 2019, Apple purchased the majority of Intel’s smartphone modem business after the two firms reached a settlement in the dispute. Apple was able to support its development by acquiring a portfolio of patents relating to cellular technology. It appears that we will eventually be able to enjoy the results of our effort in four more months.

On March 8, 2022, Apple made the announcement of the third-generation iPhone SE online. With antiquated features like a Touch ID button, a Lightning port, and large bezels surrounding the screen, the handset resembles the iPhone 8. The iPhone SE presently retails for $429 in the United States, but the new model may see a price increase of at least a little.

Continue Reading

Technology

Google is said to be discontinuing the Pixel Tablet 2 and may be leaving the market once more

Published

on

Google terminated the development of the Pixel Tablet 3 yesterday, according to Android Headlines, even before a second-generation model was announced. The second-generation Pixel Tablet has actually been canceled, according to the report. This means that the gadget that was released last year will likely be a one-off, and Google is abandoning the tablet market for the second time in just over five years.

If accurate, the report indicates that Google has determined that it is not worth investing more money in a follow-up because of the dismal sales of the Pixel Tablet. Rumors of a keyboard accessory and more functionality for the now-defunct project surfaced as recently as last week.

It’s important to keep in mind that Google’s Nest subsidiary may abandon its plans for large-screen products in favor of developing technologies like the Nest Hub and Hub Max rather than standalone tablets.

Google has always had difficulty making a significant impact in the tablet market and creating a competitor that can match Apple’s iPad in terms of sales and general performance, not helped in the least by its inconsistent approach. Even though the hardware was good, it never really fought back after getting off to a promising start with the Nexus 7 eons ago. Another problem that has hampered Google’s efforts is that Android significantly trails iPadOS in terms of the quantity of third-party apps that are tablet-optimized.

After the Pixel Slate received tremendously unfavorable reviews, the firm first declared that it was finished producing tablets in 2019. Two tablets that were still in development at the time were discarded.

By 2022, however, Google had altered its mind and declared that a tablet was being developed by its Pixel hardware team. The $499 Pixel Tablet was the final version of the gadget, which came with a speaker dock that the tablet could magnetically connect to. (Google would subsequently charge $399 for the tablet alone.)

Continue Reading

Trending

error: Content is protected !!