Science

‘Cosmic tunnel’: Scientists confirm presence of a mysterious doorway linking our solar system to distant constellations  WION Source link

As a child, I remember gazing up at the stars and dreaming of spacecraft journeying to distant worlds, those classic images of rockets blasting off toward unknown frontiers filled my imagination. But a mission to a black hole? That seemed beyond even the wildest science fiction. These stellar corpses were the stuff of theoretical physics books back then, mysterious objects …

Scientists May Have Found the Ultimate Dark Matter Detector  SciTechDaily Source link

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Press enter or click to view image in full size (Image credit: Max Barry/Nation States) A simple way to distinguish a spacecraft from a rock is through its large non-gravitational acceleration. A natural icy rock like a comet is propelled by its mass loss. That mass loss can be observed through the cometary plume of gas and dust that surrounds …

Key numbers used Voyager 1 speed ≈ 17 km/s (typical quoted value). 1 astronomical unit (AU) = 149,597,870.7 km. 1 year ≈ 365.25 days and 1 day = 86,400 seconds. Convert Voyager speed to AU per year (digit-by-digit) Seconds per year = 86,400 × 365.25 = 31,557,600 s. Distance per year = 17 km/s × 31,557,600 s = 536,479,200 km/year. …

Communication depends on Voyager’s 3.7-metre high-gain antenna transmitting narrow, low-power X-band radio signals. Those signals are captured by NASA’s Deep Space Network, three arrays of huge dishes in California, Spain and Australia, which amplify and decode the faint transmissions. The probe transmits slowly and in short bursts, storing data onboard and sending it in low-rate streams that the DSN reconstructs …

This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Outdoor lighting for buildings, roads and advertising can help people see in the dark of night, but many astronomers are growing increasingly concerned that these lights could be blinding us to the rest of the universe. An estimate from 2023 …

A massive breakthrough in quantum mechanics has been made. Researchers in Austria have discovered how to reverse the flow of time for a single particle within a quantum system, effectively bending the laws of physics. Does this mean we’re anywhere close to sending people back to the age of dinosaurs? No. We’re a long ways away, and a diagram created …

Astronomers have captured the first optical evidence of a million-light-year-long bridge of stars being torn from one massive galaxy and pulled into another, a rare galactic interaction occurring in the Abell 3667 galaxy cluster, located about 700 million light-years from Earth. The discovery, published August 5 in The Astrophysical Journal, reveals a dramatic cosmic merger between two galaxy clusters, each …