A third, tenuously held companion to the known binary V404 Cygni may signal that at least some black holes form "gently." ...
After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...
NASA’s Coronal Diagnostic Experiment (CODEX) is set to launch to the International Space Station to explore new details about ...
A distant white dwarf hosts an Earth-like planet in an orbit that might be similar to Earth’s if it survives the Sun’s red giant phase.
The risks of solar geoengineering will be magnified if critics are ignored and researchers are allowed to self-regulate.
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