Tech Explorist

Tech Explorist focuses on the technologies that influence our lives and the world around us, spanning from Earth to outer space and all the innovations in between.

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An invisible monster 600 million light-years away gulping down any star coming its way

6 days ago | techexplorist.com | Amit Malewar

Using NASA’s Hubble Space Telescope, astronomers pinpointed an invisible monster lurking 600 million light-years away, but not in any galactic center, where supermassive black holes are typically found. This sneaky black hole quietly devours stars that wander too close and surrounding material. Its presence was exposed in a recent tidal disruption event (TDE) called AT2024tvd, where a doomed star was shredded and consumed, unleashing a brilliant burst of radiation.
A novel artificial intelligence model inspired by neural oscillations in the brain

1 week ago | techexplorist.com | Amit Malewar

State-space models are AI designed to better understand long-term patterns in data, such as climate trends or biological signals. Unlike traditional models, they track how information evolves rather than just analyzing individual points. However, these models can sometimes become unstable or require high computational power, making them challenging to scale for long sequences. Researchers are improving their efficiency to make them more reliable for analyzing complex, evolving data.
Astronomers found the cause of a fracture in a massive cosmic “bone” in the Milky Way

1 week ago | techexplorist.com | Amit Malewar

Neutron stars are incredibly dense remnants of exploded stars. When these stars collapse, they often get a powerful kick, sending them speeding through space. The Milky Way’s center contains immense, bone-like structures that appear in radio waves and are lined with parallel magnetic fields. The radio waves come from charged particles spiraling along these fields, creating the mysterious features seen in space.
Lost elders, lost wisdom: How elephant societies suffer without their leader

1 week ago | techexplorist.com | Pranjal Malewar

A new study has revealed how the loss of experienced individual elephants stops the knowledge transfer between generations.
NASA’s SPHEREx begins capturing the entire sky

1 week ago | techexplorist.com | Amit Malewar

NASA’s SPHEREx space observatory has officially begun its science operations following its March 11 launch and six weeks of calibrations. This mission is mapping the entire sky in 3D, tracking hundreds of millions of galaxies to investigate the origins of the universe and the building blocks of life in the Milky Way. On May 1, SPHEREx started capturing about 3,600 images daily, with plans to operate for two years.
World's largest solar telescope achieves first solar image

1 week ago | techexplorist.com | Amit Malewar

The Daniel K. Inouye Solar Telescope, the world’s most powerful solar telescope, has reached a key milestone. Operated by the NSF National Solar Observatory (NSO), it has captured its first solar image using its most advanced instrument, the Visible Tunable Filter (VTF)—the largest imaging spectro-polarimeter ever built. A newly released image shows sunspots on the Sun’s surface at 10 km (6.2 miles) per pixel resolution.
One of the most significant objects in our solar system's asteroid belt doesn't have a core

2 weeks ago | techexplorist.com | Amit Malewar

Scientists previously studied Vesta’s interior structure using gravity and shape data from the Dawn mission, but these alone left uncertainty about how the asteroid formed. Researchers analyzed the moment of inertia to get a clearer picture, which helps determine how mass is distributed inside a planetary body. Measuring this requires tracking small rotational movements, such as precession and nutation.
How gold is formed in the universe?

2 weeks ago | techexplorist.com | Amit Malewar

Scientists have long debated the origins of heavy elements like gold and platinum, but identifying their exact sources has been challenging. These elements form through the rapid neutron capture process (r-process), a phenomenon that requires extremely astrophysical conditions. A new study, using 20-year-old data from NASA and ESA telescopes, reveals a surprising source: giant flares from magnetars, highly magnetized neutron stars.
NASA's Juno sheds new light on Jupiter's and Io's surface

2 weeks ago | techexplorist.com | Amit Malewar

NASA’s Juno mission has unveiled new insights into Jupiter’s fierce winds, cyclones, and volcanic activity on its moon, Io. The findings at the European Geosciences Union General Assembly on April 29 provide a deeper understanding of the gas giant’s atmospheric dynamics and Io’s fiery surface. Juno’s latest data has helped scientists refine a new model explaining the fast-moving jet stream that encircles Jupiter’s north pole, where massive cyclones swirl in a chaotic dance.
Revolutionary metasurface tech enhances IoT wireless reliability

2 weeks ago | techexplorist.com | Amit Malewar

Advancements in wireless technology and miniaturized circuits have transformed how we live and connect. However, as we move toward higher-frequency communication, engineers face challenges from multipath propagation, where a radio signal takes multiple paths to reach an antenna, often with delays and distortion. This can cause issues like TV ghosting and signal fading in wireless networks.