Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to understand the mysteries of neutron stars, gamma ray bursts and more
Category: space – Page 12
NASA Satellite Swarm’s Expanded Mission Powers Smarter Operations
NASA continues to study how autonomy will assist future exploration to the Moon, Mars, and other worlds. As exploration continues to evolve, future spacecraft swarms will one day “see” and communicate with each other autonomously, navigating new destinations more efficiently.
The success of NASA’s Starling mission extension, called Starling 1.5+, shows greater autonomy in space missions can give spacecraft a higher degree of independence, allowing them to make decisions and coordinate actions without the constant oversight of human operators. Improving this technology opens doors to operating swarms of spacecraft farther from Earth, like at the Moon or Mars, where communications are limited, and autonomy could play a critical role.
Device-independent method certifies genuinely entangled subspaces in photonic and superconducting systems
In a study published in Reports on Progress in Physics, researchers have achieved device-independent characterization of genuinely entangled subspaces (GESs) in both optical and superconducting quantum systems, completing the self-checking of the five-qubit error correction code space.
In quantum information, genuinely multipartite entangled states require the existence of entanglement correlations between any two subsystems within the system. The GES constituted by the states has application value especially in designing quantum error-correcting codes. By encoding quantum information in the subspace, it can prevent error propagation caused by local decoherence.
Scientists have constructed a new Bell inequality based on the stabilizer code framework constructed, and the entangled subspace can be universally characterized by using it. Any quantum state (including mixed states) within this subspace could maximally violate this inequality, providing a theoretical basis for the self-testing of genuine entangled subspaces.
Astronomers Capture First-Ever Photo of a Baby Planet Being Born in Darkness
Astronomers have captured something extraordinary: the first-ever direct photo of a baby planet growing inside a dusty ring around a young star.
Using cutting-edge adaptive optics, the team detected the glowing hydrogen gas streaming onto the infant world, essentially catching it mid-birth.
First detection of a growing exoplanet.
Scientists find proof that an asteroid hit the North Sea more than 43 million years ago
A decades-long scientific debate over the origins of the Silverpit Crater in the southern North Sea has been resolved. New evidence confirms that it was caused by an asteroid or comet impact about 43–46 million years ago.
A team led by Dr. Uisdean Nicholson from Heriot-Watt University in Edinburgh used seismic imaging, microscopic analysis of rock cuttings and numerical models to provide the strongest evidence yet that Silverpit is one of Earth’s rare impact craters. Their findings are published in Nature Communications.
The Silverpit Crater sits 700 meters below the seabed in the North Sea, about 80 miles off the coast of Yorkshire.
Mixing neutrinos of colliding neutron stars changes how merger unfolds, simulations reveal
The collision and merger of two neutron stars—the incredibly dense remnants of collapsed stars—are some of the most energetic events in the universe, producing a variety of signals that can be observed on Earth.
New simulations of neutron star mergers by a team from Penn State and the University of Tennessee Knoxville reveal that the mixing and changing of tiny particles called neutrinos that can travel astronomical distances undisturbed impacts how the merger unfolds, as well as the resulting emissions. The findings have implications for longstanding questions about the origins of metals and rare earth elements as well as understanding physics in extreme environments, the researchers said.
The paper, published in the journal Physical Review Letters, is the first to simulate the transformation of neutrino “flavors” in neutron star mergers. Neutrinos are fundamental particles that interact weakly with other matter, and come in three flavors, named for the other particles they associate with: electron, muon and tau. Under specific conditions, including the inside of a neutron star, neutrinos can theoretically change flavors, which can change the types of particles with which they interact.
Milky Way Map
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