NASA finally turned the Hubble telescope and took new 3I/ATLAS images
NASA announced that on November 30, it conducted the first repeat observations of the 3I/ATLAS object since July 2025 with one of its largest instruments, the Wide Field Camera 3 (WFC3) installed on the Hubble Space Telescope.
A solar parade of planets is forming in the sky
All three planets closest to the Sun, as seen from Earth—Mercury, Venus, and Mars—are converging in its vicinity for the first time since the fall of 2019.
The first magnetic storm of winter is expected today
The first magnetic storm of December 2025 is expected today, the 3rd. It is caused by a combination of several factors affecting Earth: another coronal hole currently observed in the central part of the solar disk, and the plasma ejection from the X-level flare that occurred on December 1st.
Sunspot complex 4294-4298 has become comparable in size to the largest activity centers of the 21st century, but remains silent
The Sun continues to display one of the largest sunspot complexes in recorded history, formed from three regions numbered 4294, 4296 and 4298.
Sunspot group 4294 is the second largest in the last 10 years
A giant sunspot complex consisting of three groups—4294, 4296, and 4298—that appeared on the southeastern edge of the Sun a few days ago continues to break records. The total area of the complex, which, despite being artificially divided into three numbers in the catalog, physically represents a single structure, exceeded 2,000 units this morning, reaching 2,200 units.
The largest sunspot complex this year has formed on the Sun
The southern sunspot group, which approached Earth two days ago, has reached its largest size this year. The total area of the complex, measured at the beginning of the day, is 1,600 units, which is currently about 60% of the size of the largest sunspot groups of the 21st century (approximately 2,800 units), but already a third larger than the previous annual record of 1,200 units, achieved in May 2025 (region No. 4079).
VIDEO: X1.9 flare occurs on the Sun last night
Solar flares of the highest X-level have resumed. Early this morning at 05:49 Moscow time, a new X1.9 event was registered on the northeastern edge of the Sun after a two-week hiatus (since November 14).
The third largest active region of the year has formed on the Sun
The video shows the first of two expected large active regions approaching Earth - region 4294, located in the south. The sunspot group currently has an area of 800 units, making it the third largest this year.
3I/ATLAS continues to exhibit a relatively rare dust antitail
As 3I/ATLAS moves away from the Sun, as expected, increasingly high-quality photographs of the object are beginning to arrive, revealing some previously hidden (or missing) details. The most remarkable of these is undoubtedly the anti-tail, oriented opposite to the main normal tail.
Increased activity is being recorded on the far side of the Sun
A noticeable increase in activity is observed on the far side of the Sun. In a few days, new major active centers may appear in Earth's field of view.