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Meta filed a patent application in the United States for a camera system equipped with facial recognition, capable of identifying individuals and automatically recording their activities in video format. This application, submitted in February and recently disclosed, details the application of this technology in wearable devices, such as smart glasses.

The company's design envisions using artificial intelligence (AI) to organize recordings and create short clips focused on specific moments of each person. However, this innovation reignites important debates about continuous surveillance and privacy violation in public environments.

The technical documentation, which spans dozens of pages with detailed illustrations and explanations, demonstrates how a camera integrated into a device can analyze the scene in real time. The process begins with capturing images by the glasses' camera or a connected device, followed by environmental analysis by AI and facial recognition, allowing the software to know who is in the user's field of vision.

In addition to facial recognition, the technology can detect body movements and behaviors. For example, the system identifies when someone picks up an item, enters a location, or joins a group. Based on these detections, the program generates video files labeled with the person's name, the action performed, and the exact moment.

These video segments are then transmitted to the user's phone, glasses, or headset. The purpose of this feature is to eliminate the need for the user to manually sift through extensive recordings; instead, they receive an organized summary of the captured activities.

The disclosure of this patent occurs during a sensitive period for Mark Zuckerberg's company. Recently, researchers discovered hidden facial recognition codes in the application associated with Meta's smart glasses, which generated a negative reaction and led the company to immediately remove that functionality from the system.

In a statement sent to Olhar Digital in mid-July, Meta stated: 'We are developing products that help millions of people connect and improve their lives. While we frequently hear about interest in this type of feature – and some products already exist on the market – we are still evaluating options and will adopt a careful approach if and before we launch anything. One thing we can make clear – we are not building a facial database.'

Experts consulted by Olhar Digital warn about the inherent risks of this type of monitoring, emphasizing that the biggest concern lies in tracking people in public areas without their consent. The ability to record or identify third parties without an explicit visual signal, such as an illuminated indicator light, raises the dangers to intimacy.

In Brazil, the General Data Protection Law (LGPD) establishes guidelines for the collection of personal data. While casually photographing on the street is permitted, converting an unknown person's face into biometric data for automatic identification requires well-defined legal grounds, and the companies developing these systems must adhere to rigorous transparency standards.

Due to these privacy threats, the use of smart glasses may face restrictions in various locations. Commercial establishments, cinemas, and government agencies, for example, have legal backing to prevent people from entering while using such devices, and an increase in inspection is expected as these technologies reach the market.

The search for signs of life beyond Earth, once considered science fiction, is a daily activity at the forefront of space exploration. In a conversation with Brazilian astrobiologist Raíssa Estrela, a researcher at NASA's Jet Propulsion Laboratory (JPL), the preparatory work for the Habitable Worlds Observatory (HWO)—a telescope designed to monitor potential 'Earth 2.0's'—was detailed. Estrela also addressed the limitations of current observatories and what is still needed to confirm the existence of extraterrestrial life.

Beyond space exploration, NASA uses instruments directed at our planet. Raíssa Estrela explained how data collected by the International Space Station (ISS) aids in mapping plastic pollution and assessing biodiversity loss, including in Brazil.

Research routine and the future of astrobiology

In her role, Raíssa Estrela works in astrobiology, focusing on identifying biosignatures in exoplanet atmospheres. She also investigates terrestrial pollutants, such as plastic and greenhouse gases, in addition to characterizing the biodiversity of Planet Earth.

Her routine involves handling data from space telescopes. During her doctoral studies, she worked with data from the Hubble Space Telescope, analyzing time series of starlight orbiting planets to identify molecules in their atmospheres. Although she no longer works with Hubble, her current focus is the preparation of the Habitable Worlds Observatory (HWO).

Estrela's current work is no longer data analysis but rather the preparation for this new space mission. A crucial aspect of this preparation is defining the necessary sciences to develop instrumentation capable of delivering the desired results. Among these sciences, the detection of biomolecule signatures, such as oxygen, ozone, and methane, stands out, requiring the definition of adequate levels and instrumentation.

Currently, there are other telescopes, such as James Webb, but the technology does not yet allow for the detection of molecules in an atmosphere comparable to that of an Earth 2.0. Thus, the current effort aims to establish the foundations so that this new space telescope can perform such science in a few years.

Timeline and technological differences

The telescope launch is estimated around 2040, depending on the completion of instrumentation and the funding required to support both the scientific and technological development teams.

The planetary characterization methodology of the HWO will differ from that used by James Webb and Hubble. While the latter employ the planetary transit technique—measuring the host star's light as the planet passes in front of it—the HWO will use a coronagraph to block the star's light. This will allow for the direct observation of light reflected by the planet itself.

The Nancy Grace Roman mission, scheduled for launch at the end of August, has a coronagraph and will serve as a test for this instrumentation. However, Roman's precision will be limited to gas giant planets, as it will not be sufficient to detect the light reflected by a small body like an Earth 2.0. Separating the signal of a tiny planet near the star requires the exclusive precision of the HWO.

Engineers and scientists are debating various possible coronagraph architectures and telescope dimensions, such as six or eight meters, without a final decision on the choice.

Capability comparison and challenges

Nancy Grace Roman will also employ a coronagraph, but its focus will be on gas giant planets, such as Jupiter, and not on small bodies. The HWO, on the other hand, will be built with a coronagraph capable of achieving the necessary precision to measure the light reflected by smaller planets, such as Venus or Earth.

Although there are studies on the telescope's reach, the exact answer depends on the final architecture chosen. A significant challenge is that when observing an Earth-sized planet, its exact size cannot be determined; its characteristics must be inferred based on its atmosphere.

The central hypothesis is to find an Earth 2.0 with oxygen and methane, gases associated with terrestrial life. However, it is necessary to distinguish whether these biogases are generated by biological processes or by abiotic phenomena, such as volcanism or photochemical interactions with the star. This study of the distinction between biological and abiotic origin is a line of research for Estrela, which includes collaboration with Brazilian students.

The case of the exoplanet K2-18b, which showed dimethyl sulfide—a compound linked to life on Earth—illustrates the difficulty. Although it is a promising scientific result, current technology still faces academic debate, where indications may later be questioned.

To make the home smarter without complications, smart speakers with Alexa are presented as one of the most practical solutions available on the market. Three versions of the Echo Dot, in the latest generation, are available on Amazon, each in a distinct shade to suit different decorations.

The Blue Echo Dot model offers robust and vibrant sound while maintaining a compact design. It connects via both Wi-Fi and Bluetooth, responds to voice commands through Alexa, and includes early access to Alexa+, which is the enhanced version of the Amazon assistant. This device is ideal for those who want to manage music, routines, smart home devices, and other features easily.

The Black version of the Echo Dot preserves the same powerful sound performance and Wi-Fi and Bluetooth connectivity, presenting a subtle look that harmonizes with contemporary environments. Integration with Alexa+ elevates the assistant's functionalities, providing a more complete experience for both home automation and entertainment.

The White Echo Dot is intended for consumers who prefer a more neutral and light appearance in their spaces. In addition to providing good quality audio and wireless connectivity, this device allows control of lights, smart plugs, making calls, and accessing streaming services solely by voice command, all enhanced by early access to Alexa+.

Since promotions on Amazon tend to be ephemeral, it is recommended to access the links immediately to ensure the acquisition of the desired unit. Users can choose the color that best suits their preferences and modernize their home with one of the most popular smart speakers in the sector.