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Every single time NASA shares a picture of space on Twitter or Instagram and explains what it is about, many in the comments section ask how these photographs were taken, whether the colours are real, and, most importantly, they enquire about the cameras that the Hubble Telescope is equipped with. The space agency, in its latest post on Instagram, said it got that question often and, therefore, wanted to break it down for space enthusiasts. To begin with, NASA’s Hubble Space Telescope doesn’t take a snapshot and get the image back in colour, something a mobile phone camera does.

NASA said that Hubble’s camera takes photos over a broad range of wavelengths that come down to Earth in grayscale. This is followed by scientists creating colour images by taking exposures using different colour filters on the telescope, assigning a colour to each filter corresponding to the wavelength, and combining the images.

The space agency said that many of the full-colour photographs shared by Hubble are created after combining three separate exposures — one each taken in red, green, and blue light.

“When mixed, these three colours can recreate almost any colour of light that is visible to human eyes,” NASA said in the post. “That’s how televisions, computer monitors, and video cameras recreate colours to show a picture!”

NASA said that scientists use the closest approximation of the Ultraviolet and Infrared spectrum in the visible light spectrum to represent that information. This, the agency said, is done because we can’t see the colours in the Ultraviolet and Infrared spectrum. It said that the colour in Hubble images is used to highlight interesting features of the celestial object being studied. And then the agency explained it with the help of an example.

Sharing a picture of The Ring Nebula, NASA said that the deep blue colour in the centre, shown in visible light, represents helium, the inner ring, shown in cyan colour, is the glow of hydrogen and oxygen, while the reddish outer ring is from nitrogen and sulphur. So, that’s how the pictures taken by NASA’s Hubble Telescope are created.

Meanwhile, the space agency on Monday shared two photographs of the space on Twitter and wrote: “Hubble’s back!”

One of the pictures shows a three-armed spiral galaxy. NASA added in the caption, “After the Hubble team successfully turned on backup hardware aboard the telescope, the observatory got back to work over the weekend and took these galaxy snapshots.”


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Government Eases Approval Process for FDI in Space Sector

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Government Eases Approval Process for FDI in Space Sector

India will allow 100% foreign direct investment in the manufacture of satellite systems without official approval and eased the rules for launch vehicles, a government statement said, aiming for a greater share of the global space market.

India’s space ambitions got a boost when it became the first country to land a spacecraft near the unexplored south pole of the moon in August – and the fourth to achieve a soft landing – just days after a similar Russian mission failed.

The government said in a statement late on Wednesday that foreign companies could invest in the manufacture of components and systems or sub-systems for satellites up to 100% without approval.

Foreign firms planning to build satellites in India would not require government approval up to 74% of the investment; for investment in launch vehicles, investment could go up to 49% without such approval, the statement said.

India has privatised space launches and is aiming for a five-fold increase in its share of the global launch market, which some expect to be worth $47.3 billion by 2032. India currently accounts for about 2% of the space economy.

The country hopes that liberalised rules for the space sector, long controlled by the government, will draw interest from Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin, among others.

The foreign direct investment policy reform is expected to boost employment and will allow companies to set up manufacturing facilities in India, the government said in the statement.

“This will give India access to the latest tech advances and much-needed funds, not only from the country but from international investors too,” said A.K. Bhatt, director general of the Indian Space Association.

Space-related India stocks such as Paras Defence and Space Technologies , MTAR Technologies, Taneja Aerospace and Aviation and Apollo Micro Systems climbed 2% to 5% on Thursday.

© Thomson Reuters 2024


(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

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Neuralink Switches Location From Delaware to Nevada

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Neuralink Switches Location From Delaware to Nevada

Elon Musk‘s brain-chip implant company, Neuralink, changed its location of incorporation from Delaware to Nevada, according to the business portals of both states.

The development comes about a week after Musk said Tesla would hold a shareholder vote to transfer its state of incorporation to Texas from Delaware after a judge invalidated his $56 billion (roughly Rs. 4,64,880 crore) pay package.

However, switching the state of incorporation for Tesla could come with hurdles such as investor lawsuits, particularly if it was seen as a move to secure his pay package, legal experts said.

Musk said last week that Neuralink had implanted its first brain chip in a human patient, who was recovering well after the procedure.

Neuralink did not immediately respond to a Reuters request for comment.

In September 2023, the company received approval from an independent review board to begin recruitment for the first human trial of its brain implant for paralysis patients.

Those with paralysis due to cervical spinal cord injury or amyotrophic lateral sclerosis may qualify for the study, it said but did not reveal how many participants would be enrolled in the trial, which will take about six years to complete.

The study will use a robot to surgically place a brain-computer interface (BCI) implant in a region of the brain that controls the intention to move, Neuralink said, adding that its initial goal is to enable people to control a computer cursor or keyboard using their thoughts alone.

© Thomson Reuters 2024


Is the iQoo Neo 7 Pro the best smartphone you can buy under Rs. 40,000 in India? We discuss the company’s recently launched handset and what it has to offer on the latest episode of Orbital, the Gadgets 360 podcast. Orbital is available on Spotify, Gaana, JioSaavn, Google Podcasts, Apple Podcasts, Amazon Music and wherever you get your podcasts.
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Elon Musk’s Neuralink Installs Brain Implant in Human for the First Time

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Elon Musk’s Neuralink Installs Brain Implant in Human for the First Time

Neuralink, the California-based neurotechnology company, has implanted a wireless brain chip in a human for the first time, revealed co-founder Elon Musk. The big development was revealed by Musk on January 29 via a series of posts on X (formerly known as Twitter). Neuralink has been working on creating implantable brain-computer interfaces (BCIs). Last year in May, the company received approval from the US Food and Drug Administration (FDA) to conduct human trials. In September 2023, the neurotechnology firm began its human trial recruitment.

Announcing in a post, Musk said, “The first human received an implant from Neuralink yesterday and is recovering well. Initial results show promising neuron spike detection.” He also revealed separately that the first BCI product by the company had been named Telepathy. The brain chip enables the control of a computer or a smartphone just by thinking, claimed the co-founder. Interestingly, the company posted a video on YouTube in 2021 where a monkey could be seen controlling a game of ping-pong with his mind, after being implanted with the chip.

“Imagine if Stephen Hawking could communicate faster than a speed typist or auctioneer. That is the goal,” he added. The first users of the product will be those who have lost the use of their limbs.

While Neuralink received its FDA approval to conduct human trials last year, it rejected an application to pursue the same in 2022. At the time, the regulatory body had cited major safety concerns involving “the device’s lithium battery; the potential for the implant’s tiny wires to migrate to other areas of the brain; and questions over whether and how the device can be removed without damaging brain tissue,” as per a report by Reuters.

In a 2019 presentation, Musk explained that Neuralink BCIs were composed mostly of polyimide alongside a thin gold or platinum conductor. These were inserted into the brain through an automated process performed by a surgical robot. The chip contains a high number of ultra-thin nodules with wires called probes. The endings of these probes contain electrodes that are capable of locating and reading electrical signals in brain. These signals are then wirelessly transmitted to a device which can convert it into electronic commands to control a device.

In the past, the company has conducted extensive tests on animals and has claimed a high success rate. While performing a successful brain chip implant is a major milestone, the success of the product will be determined by its long-term performance and lack of side effects.


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