Hi - I'm Melissa
so good of you to join me
as we journey together
into the cosmos

(Thinkin’ about how I’m going to look with short hair~)


intrepid: Earthrise, photographed from Apollo 12, November 1969.

5 Hasselblad photographs, taken from lunar orbit, between 18th and 21st November.

Image credit: NASA/JSC, c/o LPI. Animation: AgeOfDestruction.

(via astrotastic)


IC 4603: Reflection Nebula in Ophiuchius
Planted these seeds today! The larger ones are Mimosa Pudica & the tiny ones are Dionaea Muscipula (Venus Fly Traps) 🌱

I am such a baby when it comes to needles like I literally used to faint at the sight of those big momma ones used to draw blood ~

So rn I’m freaking out bc I’m at my derma and I know I’m getting a shot and it’s on my face so it’s even more terrifying…

(I no longer faint but I do get rly rly rly nervous)


July 16, 1969 — The liftoff of Apollo 11 seen from inside the firing room at Cape Canaveral, Florida.


Titan’s Atmosphere

Titan is the largest moon of Saturn. It is the only natural satellite known to have a dense atmosphere, and the only object other than Earth for which clear evidence of stable bodies of surface liquid has been found

Titan is primarily composed of water ice and rocky material. Much as with Venus prior to the Space Age, the dense, opaque atmosphere prevented understanding of Titan’s surface until new information accumulated with the arrival of the Cassini–Huygens mission in 2004, including the discovery of liquid hydrocarbon lakes in Titan’s polar regions.

The atmosphere is largely nitrogen; minor components lead to the formation of methane and ethane clouds and nitrogen-rich organic smog. Titan’s lower gravity means that its atmosphere is far more extended than Earth’s and about 1.19 times as massive. It supports opaque haze layers that block most visible light from the Sun and other sources and renders Titan’s surface features obscure. Atmospheric methane creates a greenhouse effect on Titan’s surface, without which Titan would be far colder. Conversely, haze in Titan’s atmosphere contributes to an anti-greenhouse effect by reflecting sunlight back into space, cancelling a portion of the greenhouse effect warming and making its surface significantly colder than its upper atmosphere.

Titan’s clouds, probably composed of methane, ethane or other simple organics, are scattered and variable, punctuating the overall haze.The findings of the Huygens probe indicate that Titan’s atmosphere periodically rains liquid methane and other organic compounds onto its surface. Clouds typically cover 1% of Titan’s disk, though outburst events have been observed in which the cloud cover rapidly expands to as much as 8%. One hypothesis asserts that the southern clouds are formed when heightened levels of sunlight during the southern summer generate uplift in the atmosphere, resulting in convection. This explanation is complicated by the fact that cloud formation has been observed not only after the southern summer solstice but also during mid-spring.

Image Credit: NASA/JPL/Space Science Institute

(via sagansense)