The distinct formation is believed to be maintained by two surviving rocky bodies, including one roughly the size of the dwarf planet Pluto. Observations revealed noticeable compositional differences between the structures, as the outer ring contains significantly less magnesium than the inner ring. This chemical variation suggests the material originated from separate parent objects or from different layers of a single pulverized body. Such observations foreshadow the fate of Earth's solar system when the dying sun transforms into a white dwarf.
Key points
This is the first known observation of a white dwarf encircled by two planetary debris ri…: This is the first known observation of a white dwarf encircled by two planetary debris rings rather than a single disc.
Disparate magnesium levels indicate the dual rings originated either from separate celest…: Disparate magnesium levels indicate the dual rings originated either from separate celestial objects or distinct planetary layers.
The system demonstrates how surviving planetary bodies around a collapsed star can be tor…: The system demonstrates how surviving planetary bodies around a collapsed star can be torn apart into complex orbital rings.
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WASHINGTON, Nov 7 : Billions of years from now, the sun is expected to run out of fuel and greatly expand into what is called a red giant, eventually shedding its outer layers and leaving behind its dense core, a white dwarf. Some of the planets in our solar system would be destroyed while others might survive.
Researchers have now spotted a white dwarf with planetary debris swirling around it in an unusual configuration that may offer a peek into one possible outcome for our solar system in the distant future.
Unlike in similar systems previously observed, the debris disc surrounding this white dwarf appears to consist of two distinct rings. The researchers said the disc may have been shaped by two planetary or smaller rocky bodies that are embedded in the rings after managing to survive the star's violent death throes.
The white dwarf, named J1328−1450, is located in the Milky Way roughly 1,600 light-years from Earth, in the constellation Virgo. A light-year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km). The observations…
Hungarian astronomer Krisztián Sárneczky identified the 1-to-2-metre asteroid 2026 QQ8 months after it entered Earth's gravitational sphere of influence in April. Follow-up observations confirmed it is a harmless natural space rock rather than artificial debris. The object will soon break free to resume its independent 359-day orbit around the Sun.
Beijing is opening its orbital outpost to international partners for the first time under the Belt and Road Initiative framework. The selected payload specialist will conduct a short-term mission aboard the Shenzhou-24 flight before returning on another vessel. This historic milestone underscores deepening bilateral aerospace ties as China accelerates its broader ambitions for lunar exploration.
Astronomers analyzed early imaging covering just a fraction of the southern sky to detect an ultra-faint galaxy alongside an obscured star cluster. These observations demonstrate how upcoming full-sky mapping will systematically expose the Milky Way's missing satellite systems. Tracing these elusive cosmic structures will directly support ongoing research into how our galaxy assembled and help clarify the behavior of dark matter.