Contributor Posts

NASA Astronomy Picture of the Day:

What has happened to Comet Lemmon's tail? The answer is blowing in the wind — the wind from the Sun in this case. This continuous outflow of charged particles from the Sun has been quite variable of late, as the Sun emits bursts of energy, CMEs, that push out and deflect charged particles emitted by the comet itself. The result is a blue hued ion tail for Comet C/2025 A6 (Lemmon) that is not only impressively intricate but takes some unusual turns. This long-duration composite image taken from Alfacar, Spain last month captured this inner Solar System ionic tumult. Comet Lemmon is now fading as it heads out away from the Earth and Sun and back into the outer Solar System.

Work shed on the Boshuisweg. Location: Kroondomein Het Loo. (Detail).

Agnes Monkelbaan, CC BY-SA 4.0, via Wikimedia Commons. View source.

Basilica, Xavier, Navarre, Spain. The basilica belongs to the ensemble of the Castle of Xavier, built in the 10th century, although the basilica was not built until end of the 19th and beginning of the 20th century. Of eclectic style, the interior has a unique neogothic nave built with grey stone and white marble. The stained glass is a work of painter Marcelino Santamaría from Burgos. The main altar is an artistic decorative work, carved in stone inlaid with mosaics, bronzes and enamels by the Biais house in Paris. The tabernacle is located on a high relief that represents San Francisco baptizing and preaching.

Diego Delso, CC BY-SA 4.0, via Wikimedia Commons. View source.

Delila Hatuel is an Olympic foil fencer. Today is her birthday.

MLAPH, CC BY-SA 4.0, via Wikimedia Commons. View source.

View on Val Montanaia (Montanaia Valley), with the Cima Both (2,437 m) on the left and the "Campanile" (2,173 m) in the middle; both are peaks of the Spalti di Toro group, in the Friulian Dolomites Natural Park, Friuli-Venezia Giulia, Italy.

Scosse, CC BY-SA 4.0, via Wikimedia Commons. View source.

A macro shot of a red-and-green macaw's (Ara chloropterus) eye, Serra da Capivara National Park, Piauí state, Brazil.

LeonardoRamos, CC BY-SA 4.0, via Wikimedia Commons. View source.