Tag

Pulsar

All articles tagged with #pulsar

technology1 month ago•3 min saved

Pulsar's Feinmann FO1 Noctua Edition Introduces Internal Cooling in a 73g Gaming Mouse

Pulsar reveals the Feinmann FO1 Noctua Edition, a lightweight gaming mouse that houses a 40mm Noctua NF-A4x10 PWM fan inside the shell to blow air directly into the palm for sweat-free sessions. It uses the XS-2 sensor with up to 42,000 DPI and 8 kHz polling, and weighs about 73g (up from the original 46g). The shell design features large vents for sustained airflow, and the official launch is set for July 21, 2026; MSRP and regional availability have not yet been announced.

via Wccftech|

#cooling #gaming #noctua

technology1 month ago•12 min saved

Xona readies a 258-satellite Pulsar network for centimeter-precision PNT from space

Xona Space Systems aims to deploy a 258-satellite Pulsar constellation in low-Earth orbit to deliver GPS-like PNT with signals up to 100 times stronger than traditional GNSS, enabling centimeter-level positioning and robust timing even indoors or in jammed areas. Six production satellites are planned for launch in Oct 2026 with commercial service starting in 2027, building on Pulsar-0’s 2025 flight and live jamming tests. The system is designed to work with existing L1/L5 receivers, and Xona is rolling out a Pulsar Verified program to onboard hardware partners, while competitors like TrustPoint pursue similar LEO-PNT efforts.

via Ars Technica|

#gps-alternative #low-earth-orbit #pnt

space1 month ago•12 min saved

Crab Nebula Still Expanding: A Millennium-Old Supernova Remnant in Motion

Hubble re-imaged the Crab Nebula to measure its ongoing expansion since SN 1054, finding filaments moving about 0.3 arcseconds per year (roughly 3.4 million mph) driven by energy from the central pulsar; the thousand-year-old remnant is not a static shell and new filament groups with similar emission were identified, linking the medieval guest star to a living, evolving nebula about 6,500 light-years away in Taurus.

via Space Daily|

#crab-nebula #expansion #hubble-space-telescope

science1 month ago•48 min saved

Blue Eye Pulsar Finds Its Voice: Faint Radio Pulses Detected

Using the MeerKAT radio telescope, astronomers detected very faint radio pulses from 1E 1207.4-5209, a central compact object at the center of a supernova remnant nicknamed the Blue Eye Pulsar, about 10,000 light-years away. The signal matches the 424-millisecond spin, marking the first detection of radio emission from this quiet neutron star after decades; a 2015 spin glitch may have reoriented or boosted its magnetic field to make the pulses detectable, suggesting many more such faint pulsars exist and possibly explaining missing pulsars in remnants like SN 1987A.

via Yahoo|

#central-compact-object #meerkat #neutron-star

space1 month ago•11 min saved

Diamond-Rain World Around a Pulsar Challenges Planet-Formation Theory

Using the James Webb Space Telescope, astronomers identified PSR J2322-2650b, a Jupiter-mass world orbiting a pulsar. Its atmosphere is unusually rich in helium and carbon, with nitrogen and oxygen largely absent, and its clouds may condense soot into diamond, implying a “diamond rain.” The planet’s nearly pure carbon composition and puzzling formation history defy current models, challenging the line between planet and stellar remnant and prompting new theories about how such worlds form.

via Space Daily|

#carbon-atmosphere #diamond-rain #exoplanet

science2 months ago•12 min saved

Lemon-shaped exoplanet around a pulsar reveals carbon-rich atmosphere, baffling formation theories

NASA’s James Webb Space Telescope observed PSR J2322-2650b, a Jupiter-mass planet in a lemon-like orbit around a millisecond pulsar, with an atmosphere dominated by molecular carbon (C2 and C3) rather than water or methane. The extreme carbon-to-oxygen and carbon-to-nitrogen ratios, plus the planet’s shape and winds, challenge current formation theories. The finding is based on spectra from a single planet using one instrument, so while striking, it highlights a new puzzle rather than a confirmed explanation for how such worlds form.

via Space Daily|

#carbon-atmosphere #exoplanet #planet-formation

science2 months ago•37 min saved

Decades-Long Radio Mystery Solved: A Vampire-Star Binary Revealed

Astronomers have pinpointed the source of decades of mysterious radio emissions to a tight binary system in which a neutron star—the so‑called vampire star—feeds on its companion, solving the 20‑year mystery and illuminating how mass transfer in such systems produces observable radio signals.

via Yahoo|

#astronomy #binary-star #note-only-five-allowed-trimmed-to-five-below

space4 months ago•67 min saved

Hubble captures 25-year evolution of the Crab Nebula

Astronomers compared two high-resolution Hubble images of the Crab Nebula taken in 1999/2000 and 2024, finding the iconic supernova remnant has expanded and changed shape over 25 years. The nebula’s filaments are moving outward at about 3.4 million mph, driven by energy from the central pulsar rather than a passing shock wave, and the new view reveals 3D structure and varying gas temperatures within the expanding shell.

via Live Science|

#crab-nebula #hubble-space-telescope #pulsar

astronomy5 months ago•3 min saved

Hubble’s Fresh View Reveals Dynamic Crab Nebula Filaments

Hubble released a new image of the Crab Nebula, the remnant of a supernova observed in 1054 A.D., showing that its outer gas filaments have evolved and are moving faster than the inner regions over the past 25 years, a motion driven by the nebula’s central pulsar.

via Nautilus | Science Connected|

#astronomy #crab-nebula #hubble-space-telescope

space-astronomy5 months ago•52 min saved

Jellyfish Nebula in Gemini Resembles a Brain in Brilliant Space Photo

Space.com reports astrophotographer Ogetay Kayali captured IC 443—the Jellyfish Nebula—a 5,000‑light‑year‑old supernova remnant in Gemini near Propus. The image highlights the glowing hydrogen shell and intricate interstellar filaments, with a pulsar remaining from the explosion. Kayali notes the composition can resemble both a jellyfish and a brain, illustrating the remnant’s striking shell and its environment.

via Space|

#gemini #ic-443 #jellyfish-nebula

astronomy6 months ago•55 min saved

Milky Way’s Core May Hide an Ultra-Magnetized Pulsar

Scientists suspect a rapidly spinning, highly magnetic neutron star (a pulsar) sits near the Milky Way’s center. A Breakthrough Listen radio survey with the Green Bank Telescope (2021–2023) found a single pulsar candidate, BLPSR, around 122 rotations per second. If confirmed, such a pulsar orbiting Sagittarius A* could serve as a precise cosmic clock to test general relativity in the extreme gravity near the galaxy’s supermassive black hole, though the Galactic Center is notoriously hard to survey. Future facilities like ngVLA and SKA could help determine how many pulsars truly populate the core.

via Space|

#astronomy #galactic-center #general-relativity

research-and-discovery6 months ago•5 min saved

Potential Pulsar Near Galactic Center Could Probe General Relativity

Columbia University and Breakthrough Listen identify an 8.19-millisecond pulsar candidate near the Milky Way’s Sagittarius A*, with follow-up observations underway; confirming it could enable precision tests of General Relativity around the galaxy’s central supermassive black hole.

via Columbia University|

#breakthrough-listen #general-relativity #milky-way-center

science8 months ago•5 min saved

Unbelievable Lemon-Shaped World Defies Expectations

A newly discovered exoplanet, PSR J2322-2650b, orbiting a millisecond pulsar, exhibits bizarre features such as a lemon shape, a carbon-rich atmosphere with potential diamond rain, and an unusual atmospheric rotation, challenging current understanding of planetary formation and evolution.

via ScienceAlert|

#carbon-atmosphere #exoplanet #psr-j2322-2650b

science8 months ago•2 min saved

Lemon-Shaped Exoplanets with Unique Atmospheres and Mysteries

An unusual exoplanet called PSR J2322-2650b, located 2,000 light years away and shaped like a lemon due to the intense gravity of its pulsar host, exhibits unique characteristics including a helium-and-carbon atmosphere where rain could turn into diamonds, making it potentially a new type of celestial object.

via Good News Network|

#diamond-rain #exoplanet #lemon-shaped

science8 months ago•3 min saved

NASA's Webb Unveils Bizarre Lemon-Shaped Exoplanet with Unique Atmosphere

Astronomers using the James Webb Space Telescope have discovered a unique, lemon-shaped exoplanet called PSR J2322-2650b, orbiting a pulsar at a very close distance. The planet has an unusual composition dominated by helium and carbon, with surface temperatures up to 3,700°F, and may represent a new class of cosmic object due to its peculiar shape and atmosphere. Its origins are uncertain, raising the possibility of a new type of celestial body.

via Futurism|

#carbon-rich-atmosphere #exoplanet #james-webb-space-telescope