An unusual x-ray signal from the Helix Nebula, first detected in 19180, could stem from a star destroying a nearby planet. Credit: NASA/CXC/A. Hobart ...

宇宙，一片无垠的画布，点缀着无数闪耀的星辰。而在这些星辰之间，漂浮着宇宙中最令人叹为观止的奇景——星云。它们是恒星的诞生地，也是恒星消亡后的壮丽遗迹，在恒星生命周期的交响曲中，以光与色的爆炸和变幻，展现着宇宙的磅礴与细腻。这些由尘埃和气体构成的巨型云团，不仅填充了星际空间，更以其空灵之美，在千年之前就已深深吸引了观星者们的目光，并被载入史册。今天，就让我们一同凝视宇宙深处的28个绝美星云，揭开它们 ...

The Helix Nebula is a planetary nebula in the constellation Aquarius, and one of the closest bright planetary nebulae to Earth It was first discovered by Karl Ludwig Harding in 1823 and it is 650–655 ...

An unusual x-ray signal from the Helix Nebula, first detected in 19180, could stem from a star destroying a nearby planet. Credit: NASA/CXC/A. Hobart ...

The Helix Nebula is a planetary nebula, formed from the outer layers of a dying star similar to our Sun, located about 650 light-years away in the constellation Aquarius. 4.

The Helix Nebula stands out due to its proximity to Earth and its distinctive appearance, often likened to a giant eye in the sky. Spanning about 2.5 light-years across, ...

The Helix Nebula, also known as Caldwell 63, is located 650 million light-years from Earth. It is the glowing remains of a dying star, much like our Sun. As the star neared the end of its life, it ...

The Helix Nebula, also known as Caldwell 63, is 650 light-years from Earth, according to NASA.It's the remains of a dying star, which is gradually shedding its outer gas layers into the ...

The Helix Nebula is called a planetary nebula (confusingly, this name has nothing to do with planets but is a historical artifact arising from a mistake by scientists in the 19th century), ...

The Helix Nebula may appear like a bubble or eye from Earth, but it's actually a trillion-mile-long tunnel of glowing gas. Discovered by Karl Ludwig Harding in 1823, it lies 650–655 light-years away.

An unusual X-ray signal detected from the Helix Nebula for over four decades has now been linked to the destruction of a planet by the white dwarf at its center. Observations from multiple X-ray ...