Science-based Tours To Unique Destinations Across The Globe

Sirius Travel Inc. is owned and operated by astronomers who are avid travelers and whose specialties include solar astronomy, stellar and planetary evolution, galactic astronomy, cosmology, X-ray astronomy, astrophotography, and archaeoastronomy. When we are not leading tours around the world, we pursue observing time, write papers, and teach astronomy. Based in Boulder, Colorado, Sirius Travel is influenced by and ideally situated to access the rich astronomical environment, both ancient and modern, of the north american southwest.

Griffith Observatory LogoVol 88, No. 1, Jan, 2024 NYT LogoApr 9, 2024 Travel Weekly LogoFeb 18, 2025 Orlando Voyager logoDec 3, 2025
As featured in:

Eclipse Tours

Iceland Postcard

Mallorca Postcard

Egypt Postcard

Australia Postcard

Total Eclipse | Iceland

WAITLIST

August 10-17, 2026

Total Eclipse | Mallorca

August 10-16, 2026

Total Eclipse | Luxor

WAITLIST

July 27 – Aug 4

–OR–

July 30 – Aug 8, 2027

Total Eclipse | Sydney

July 20 – 24, 2028

Cultural and Astronomical Tours

Easter Island Postcard

Mwo Postcard

Iceland Nl Postcard

Italy Postcard

Easter Island | Chile

May 30 – June 6, 2026

Mt. Wilson Observatory | California

June 14-15, 2026

Northern Lights | Iceland

October 5-10, 2026

The Life of Galileo | Italy

October 20-29, 2027

About Sirius Travel

Sirius Travel is named for Sirius, the brightest star in the sky. Through time, Sirius has shone faithfully in the winter sky when the nights are their longest. Following Orion, the hunter, Sirius is part of the constellation Canis Major – Orion’s hunting dog – always at the hunter’s knee. Once a year Sirius disappears in the light of the sun only to reappear in the early morning close to the summer solstice.