Comet Atlas had been forecast to become "really, really stunning" within weeks, as it got closer to Earth.
Astronomers expected that it could be seen moving among the stars before reaching its closest point to us, in May.
Download the new Independent Premium app
Sharing the full story, not just the headlines
They spoke hopefully of spotting its greenish hue as it blazed through the solar system, though noted that much was still mysterious about the object, which was first spotted in May.
Now, however, the object appears to have broken up and will not make for such a beautiful – or even visible – sight once it actually arrives.
Astronomers tracking the journey of the comet, which is officially known as C/2019 Y4 (ATLAS), show that it appears to have broken up.
Recent images show that there appears to be an "elongated pseudo-nucleus" that is lined up with the tail. That shape is in line with "a major disruption" of the comet, astronomers Quanzhi Ye and Qicheng Zhang wrote in a message to colleagues.
Those observations were confirmed in follow-up observations taken over the first week of April, confirming the shape and the indication that it seems to have broken apart.
The Atlas Comet is still relatively new to astronomers, and so little is still known about it and how it could have broken up. As such, it could still be visible from Earth – either as a whole object or broken into pieces – but scientists are unlikely to know for sure until it gets closer to Earth.
This website or its third-party tools use cookies, which are necessary for analytics and its functioning and required to achieve the purposes illustrated in the cookie policy, including the personalization and analysis of ads and content. If you want to learn more or withdraw your consent to all or some of the cookies, please refer to the cookie policy.
By clicking on Accept you are agreeing to the placement of cookies on your device.
Further use of our site shall be considered as consent. You may view our Privacy Policy and Cookie Policy here for more information.
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Strictly Necessary Cookies
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.
If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again.