New moon | March equinox | Galaxy season

Spring begins, galaxy season starts and the moon visits the Pleiades Created for znamenski.spacecom@blogger.com | Web Version   March 16, 2026 FOLLOW US FOLLOW US   Just Look Up! SIGN UP ⋅   SHARE   What's Up This Week? Hello skywatchers! Spring is arriving in the night sky and with it comes one of the best observing seasons of the year.  This week features a delicate predawn lineup of the moon with Mercury and Mars, the arrival of the new moon and the March equinox, marking the official start of spring in the Northern Hemisphere. Darker skies later in the week also open the door to the beginning of galaxy season, when distant stellar islands begin to dominate the evening sky. Elsewhere in this issue, we're featuring a stunning astrophoto of a glowing nebula in Orion, created from nearly 70 hours of exposure time, revealing delicate details hidden deep inside this famous stellar nursery.  Here's what to watch for in the nights ahead.  Daisy Dobrijevic  Reference Editor, Space.com   (Starry Night) Tuesday, March 17: Sliver of moon near Mercury and Mars (predawn) A very thin crescent moon rises just before sunrise alongside Mercury and Mars. The trio forms a small triangle low in the eastern sky and can fit in the same binocular view. (Starry Night) Wednesday, March 18: New moon The moon reaches its new phase at 9:23 p.m. EDT (0123 GMT on March 19). With the moon out of the evening sky, the following nights offer darker conditions, ideal for observing faint galaxies and nebulas. (Starry Night) Friday, March 20: Earthshine moon and Venus  After sunset, a delicate crescent moon hangs above brilliant Venus in the western sky. Look for earthshine, where sunlight reflected from Earth softly illuminates the moon's dark side.  (Starry Night) Sunday, March 22: Crescent moon meets the Pleiades  The waxing crescent moon appears near the Pleiades star cluster in Taurus after dusk. Binoculars will easily reveal the cluster's bright stars sparkling above the moon.  Moon Calendar Notable moon phase this week: New moon The moon reaches its new phase on March 18 at 9:23 p.m. EDT (0123 GMT on March 19). During this phase, the moon sits between Earth and the sun, leaving the night sky dark and moon-free. The week surrounding the new moon is one of the best times of the month for observing deep-sky objects, especially galaxies that begin to fill the spring sky.  Want to explore more? Check out our ultimate guide to observing the moon for tips and tools to get the most out of each phase. Read More In The News Galaxy season: Spring brings deep space wonder to the northern hemisphere night sky Spring skies reveal some of the best galaxies visible to backyard telescopes. Read More Your Amazing Astrophotos Astrophotographer spends nearly 70 hours capturing a delicate blue nebula in Orion (photo) Astrophotographer Emil Andronic captured a gorgeous blue reflection nebula glowing inside the red clouds of Orion's Head in the constellation Orion. Read More Constellation spotlight: (Christophe Lehenaff) Constellation spotlight: Gemini  Look high in the western sky after sunset for Gemini, the constellation of the Twins. The two brightest stars, Castor and Pollux, mark the heads of the twins and form a distinctive pair visible even from light-polluted skies.  Gemini sits along the path of the sun and planets, known as the ecliptic, which means the moon and planets frequently pass through it, making it a familiar landmark in the night sky.  Astronomy Kit and Accessories Shoot the stars: The best gear for night sky photography Here are five ways to capture the night sky. Read More The best accessories for your new astrophotography camera These astrophotography camera accessories are worth adding to your setup in 2026. Read More Stay up-to-date on all things space science, news, and entertainment by subscribing to our newsletters. Sign Up   Follow Night Sky This Week Contact Us: Feedback | Advertise Sign Up | Update Profile | Unsubscribe Privacy Policy | Cookies Policy | Terms and Conditions Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036.

Artist Canvas for Painting: 2026 Material Selection Parameters

What dictates the structural integrity of blank painting canvas?

Artist canvas for painting is a highly specialized woven textile substrate engineered specifically to hold pigment securely. As a materials scientist analyzing biaxial tensile strength, I categorize these surfaces by fiber composition. Cotton duck fabric offers an economical, short-staple weave. Belgian linen utilizes long bast fibers from the flax plant. Polyester provides a purely synthetic, climatically neutral polymer alternative. Laboratory aging simulations from 2025 prove that pure linen retains forty-two percent more structural rigidity over a half-century than standard cotton. The presence of natural lignin allows linen to resist severe hygroscopic expansion.

How do oil and acrylic mediums alter substrate preparation requirements?

Painters must match the fabric primer directly to their chosen chemical binder. Linseed oil binders generate an exothermic oxidation reaction. This reaction releases hexanoic acids that break the beta-glycosidic bonds in raw cellulose. Painters block this degradation by applying a Polyvinyl Acetate size directly to the raw cotton. Acrylic polymer emulsions do not rot natural fibers. Acrylics require mechanical tooth for proper adhesion. Manufacturers apply calcium carbonate and polymer emulsion mixtures, known as acrylic gesso, to create this porous grip. Proper gesso application also blocks Support Induced Discoloration caused by migrating water-soluble impurities.

Why does raw fabric weight determine tension dynamics?

Textile mills measure substrate density in ounces per square yard before applying any chemical ground. Heavyweight canvases measuring twelve ounces or higher provide the necessary rigidity for heavy impasto techniques. Tension tests demonstrate that twelve ounce fabric supports three pounds of applied modeling paste per square foot before demonstrating center-sag. Lightweight fabrics warp immediately under heavy moisture. Artists producing large gallery installations rely on heavy yardage from bulk raw canvas rolls to maintain surface tension. Retailers also stretch medium fabrics over wooden chassis to create standard prepared canvas supports.

Review material specifications carefully before acquiring artist painting surfaces. Compare professional stretched canvas options to verify gallery profile depths. Evaluate yardage requirements using bulk raw canvas rolls to manage high-volume studio production efficiently for specific oil or acrylic painting applications today.

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