Key Highlights
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For the first time, astronomers have searched for Trojan-like planets, called “exotrojans,” in pulsar systems using precise timing data. This pioneering search sets new upper mass limits for such hidden worlds and provides the first observational constraints on their existence around these exotic stars.
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Researchers have found two star clusters forming within a high-velocity cloud of gas orbiting our galaxy, known as Complex H. This discovery provides direct evidence that stars can form in these circumgalactic clouds, challenging our understanding of where and how star formation can occur.
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Scientists have modeled a giant impact crater on the metal-rich asteroid Psyche to see if it reveals a hidden metal core. By simulating the crater’s formation, this work provides a way for the upcoming NASA Psyche mission to determine if the asteroid is the exposed core of an ancient planetesimal.
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A new study shows that the minimum of a scalar field’s potential in a modified gravity theory can act like a cosmological constant, affecting how gravitational waves travel. This finding helps distinguish between different origins for the universe’s accelerated expansion and changes how we interpret signals from gravitational wave events.
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The Gaia space telescope has detected subtle wobbles in baby star systems, hinting at the presence of hidden planets carving gaps in their protoplanetary disks. This offers a new, indirect method to find planets in their earliest stages of formation, long before they are visible by other means.
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