How to Spread and Mount a Butterfly – Part III


HMNS entomologist Erin Mills walks you through how to mount and display a butterfly in this 4-part video tutorial.

Part III: Setting the Butterfly

Part III continues below:

 Check back next week for our final installment of this video series.

Seeing Stars with James Wooten: The Stars of Spring are Rising

March star report
Mars remains in the west at dusk this month as it moves through Pisces. Mars continues to fade a little each night as Earth continues to leave it farther behind. After this month, Mars begins to be lost in the glare of the Sun.

Venus is in the west at dusk. Venus overtook Mars on February 21; now watch Venus leave behind the much dimmer Mars throughout March.

Jupiter was up all night long in February; now it is high in the east as soon as night falls. Jupiter outshines all stars we ever see at night, so it will be obvious in the east at dusk.

Saturn is in the south at dawn.

Brilliant winter stars shift towards the southwest during March. Dazzling Orion is almost due south at dusk. His three-starred belt is halfway between reddish Betelgeuse and bluish Rigel. Orion’s belt points up to Aldebaran in Taurus the Bull. To Orion’s upper left are the twin stars Castor and Pollux, marking the heads of Gemini, the Twins. You can find Sirius, the brightest star we ever see at night, by drawing a line from Orion’s belt towards the horizon. To Orion’s left, about level with Betelgeuse, is Procyon, the Little Dog Star.

From Sirius, look a little bit to the right and then straight down to the horizon. If your southern horizon is clear of clouds and tall earthly obstacles, you’ll see Canopus, the second brightest star ever visible at night. This star is so far south that most Americans never see it and many star maps made in the USA omit it. (You must be south of 37 degrees north—the latitude of the USA’s Four Corners—for Canopus to rise). As you view Canopus, keep in mind that the sky we see depends on our latitude as well as on time of year and time of night.

Joining the winter stars are stars of spring rising in the east. Look for Leo, the Lion at dusk. Later in the evening, extend the Big Dipper’s handle to ‘Arc to Arcturus’ and then ‘speed on to Spica’; these stars rise at about 10:00 in early March but by 9pm on the 31st.


Moon Phases in March 2015:

Full March 5, 12:05 pm
Last Quarter March 13, 12:48 pm
New March 20, 4:38 am
1st Quarter March 27, 2:43 am

Sunday, March 8, is the second Sunday of the month. Accordingly, Daylight Saving Time begins at 2:00 am on that date. (Officially, the time goes from 1:59 to 3:00 am). Don’t forget to spring forward!

At 5:45 pm on Friday, March 20, the Moon is directly overhead at the equator. This is therefore the vernal equinox. On this date everyone on Earth has the same amount of daylight and the same amount of night. The common statement that day equals night on this date would be true if the Sun were a point in our sky. Since the Sun is a disk about half a degree across in our sky, day is slightly longer than night on the equinox. For us, this is the ‘official’ start of spring; our days will continue to lengthen until the longest days of June usher in summertime. Below the equator, it is autumn, and days will continue to shorten until winter begins in June.

The New Moon of March 20 blocks the Sun, casting its shadow on the Earth. This results in a solar eclipse. Unfortunately, the shadow traces a path in the North Atlantic between Iceland and Scandinavia, making the eclipse inaccessible to us.

Click here for the full Planetarium Schedule

On most clear Saturday nights at the George Observatory, you can hear me do live star tours on the observation deck with a green laser pointer. If you’re there, listen for my announcement.

Girls Exploring Math and Science 2015


Last Saturday, we celebrated our 10th year of hosting Girls Exploring Math and Science (GEMS) at HMNS! Despite the questionable weather, we had a spectacular turnout! From underwater robots to photobooths, we had it all.


The GEMS event includes two sections – community booths and student booths. Our community booths are hosted by local STEM organizations. They present STEM activities or demonstrations to young students and they talk about how they got their STEM careers. This year, the Subsea Tiebeck Foundation brought an exhibit called SEATIGER. It’s a giant tank containing an underwater ROV (Remotely Operated Vehicle) for students to learn about how STEM is involved with the offshore and subsea industries. GEMS also included fault line activities, polymer demonstrations, and astronaut dexterity challenges from some of our other community booths!


In addition, GEMS hosts student booths. As a student booth, students present a project relating to science, technology, engineering or math to peers as well as adults. Every year we award the top three projects with prize money for their school, club or Girl Scout troop. This year we had some exceptional projects! Third place went to Girl Scout Troop 17492 for their project, The Human Battery. Like true scientists, these fourth grade girls had to reconstruct their experiment after their first attempt failed. Luckily, they reconstructed their experiment, and found an alternative way to power a battery using lemons instead! The second place team was another group of Girl Scouts, Troop 126005. Their project, POP! The Power of Programming, examined the intricacies of computer programming and each of the girls designed their own small program too! First place went to Jersey Voltage, the Jersey Village High School Robotics team. The team built a robot that could throw a ball, and they demonstrated their robots talent by playing catch with some GEMS participants! They plan to use their winnings to take their robot to a robotics competition in Texas or Louisiana!


We hope that everyone that joined us at GEMS 2015 had a great time! If you took some photos in our smilebooth, you can see them here!

Join us at GEMS next year on Saturday, February 20, 2016!!