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Updates every hour. Last Updated: 9-Sep-2025 20:11 ET (10-Sep-2025 00:11 GMT/UTC)
An international team led by Dr. Hila Glanz of the Technion – Israel Institute of Technology has uncovered a new origin for hypervelocity white dwarfs — stellar remnants racing through space at more than 2000 km/s.
Using advanced 3D hydrodynamic simulations, the researchers showed that when two rare hybrid white dwarfs merge, the heavier star can undergo a double-detonation explosion. This blast ejects the surviving remnant of its companion at hypervelocity, fast enough to escape the Milky Way.
The findings, published in Nature Astronomy, explain both the extreme speeds and unusual properties of known hypervelocity white dwarfs, while also pointing to a new pathway for faint and peculiar Type Ia supernovae.
The study was conducted by researchers from the Technion, Universität Potsdam, and the Max Planck Institute for Astrophysics, and has implications for future transient surveys and Gaia discoveries.
After six centuries in Spain, discrimination against the Roma people remains “rooted in stereotypes based on ignorance and, in some cases, pseudo-knowledge about this community”, explains Juan Jarque Jarque, who advocates for an inclusive education system that respects diverse values as a way to end antigypsyism and encourage greater Roma participation in community life. To overcome both antigypsyism in Spanish society and Roma disengagement from it, Jarque proposes an education system that weaves Roma history into Spain’s national narrative while also protecting each community’s cultural identity. This way, different groups can preserve their traditions yet share the same cultural, political and social space.
Looking for the perfect vacation? Do you crave late-night fun? PSO J318.5−22, the planet with no star where nightlife never ends, is perfect for you! Prefer some peace and a chance to catch some rays? Kepler-16b, the land of two suns—where your shadow always has company—is waiting!
In 2015, NASA launched an unusual and brilliant exoplanet outreach campaign, offering retro-style posters, virtual guided tours, and even coloring books. The project quickly went viral worldwide. What explains the success of a campaign about a relatively young field of science that—unlike other areas of space research—lacks spectacular imagery?
Ceridwen Dovey, science communicator, writer, filmmaker, and researcher, has just published in the Journal of Science Communication (JCOM) a Practice Insight paper that presents a case study focusing on the Exoplanet Travel Bureau’s poster campaign. Dovey describes the productive working relationships between scientists and artists that produced this standout work and shows how, in contexts like this, artists are not merely in service to science but can also inspire research itself and help scientists clarify their own thinking.
The European Space Agency-led Solar Orbiter mission has split the flood of energetic particles flung out into space from the Sun into two groups, tracing each back to a different kind of outburst from our star.