Mae Jemison demonstrated an early passion for science, earning a B.S. in chemical engineering and a B.A. in African American studies from Stanford, an M.D. from Cornell Medical College, and serving as ...

Comet C/2025 A6 (Lemmon) is currently visible in both morning and evening skies, initially located near the Big Dipper within Canes Venatici before transitioning into Boötes. Its perigee, the closest ...

Venus will be visible in the western sky for approximately one hour after sunset throughout September, exhibiting a diminishing phase and decreasing altitude. A close conjunction with the Moon will ...

Hubble proved Andromeda is a separate galaxy by identifying a Cepheid variable star within it. Cepheid variables have a period-luminosity relationship: longer period means greater brightness. Knowing ...

The Moon passes 1.9° due north of Neptune at 6 A.M. EDT this morning. Early rises will be able to catch the Moon hanging between Venus and Mercury in the predawn sky — check out last week’s column for ...

August 2025 offers several planetary conjunctions, including a close approach of Venus and Jupiter on August 12th, and a second conjunction of Saturn and Neptune on August 6th, with a third occurring ...

An exclusive tour, "2027 Pharaoh’s Shadow" by Eclipse Traveler, has been introduced to facilitate observation of the 2027 total solar eclipse following the oversubscription of a prior offering. The ...

This tour is currently under development. Eclipse Traveler is designing an exclusive journey to place you in an optimal viewing location for this incredible celestial event.

Step outside tonight in the early evening, when Sagittarius lies above the southwestern horizon. Globular cluster M22 shines brightly at magnitude 5.1, readily observable with binoculars or any size ...

Charles Messier first cataloged M51 on October 13, 1773, describing it as a "very faint nebula without any stars" and making it the 51st entry in his catalog. In 1781, Pierre Mechain observed M51 to ...

An observational event is described, featuring the Moon in close angular proximity to Jupiter. This celestial alignment is scheduled for the early morning of October 14, with Jupiter positioned in the ...

The Last Quarter Moon phase is scheduled for October 12 at 2:13 P.M. EDT. On October 12 at 6 P.M. EDT, the Moon will pass 4° north of Jupiter, with Jupiter exhibiting a magnitude of –2.2. Telescopic ...