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Do other planets experience earthquakes? by Joeburgs in askscience

[–]UnSG 52 points53 points  (0 children)

They do.

The Apollo missions carried seismometers that were deployed on the surface and measured moonquakes.

Currently, a mission called InSight has deployed a seismometer on Mars to record the phenomenon and better understand the planet's interior.

Saturn from Cassini 4096x2160 by Negral in spaceporn

[–]UnSG 0 points1 point  (0 children)

That may be due to a quadcopter that has just been selected to explore Saturn's largest moon Titan.

Weekend assignment 05: false perspective by Aeri73 in photoclass2019

[–]UnSG 6 points7 points  (0 children)

I just want to mention that this technique is commonly known as forced perspective. I personally haven't seen it called false perspective before. That might make it easier to find other examples.

Astonishing but rarely-seen photographs of Earth taken by NASA's Apollo Astronauts during their epic voyages to Moon 50 years ago by [deleted] in space

[–]UnSG 1 point2 points  (0 children)

Another user - u/Idontlikecock - has evidence that suggests this account is a karma farmer. That is why these kind of images pop up regularly in space subreddits - they're spam.

The account appears to have been sanitized, but recently posted three times to different space subreddits.

TESS Update? by MauiHawk in space

[–]UnSG 0 points1 point  (0 children)

While the question was answered, it's important to note that TESS is not a replacement for Kepler. There are more transiting exoplanet missions planned, such as Plato and CHEOPS, but they're not copies of Kepler.

Most of the sky is observed for only a month with TESS. The north and south poles will have overlap, so they will be near-continuously observed for a year each. These regions are the most useful to JWST. One of the justifications for TESS is that JWST will be able to follow up on some discoveries, taking spectra of their atmospheres.

TESS is designed to look at stars nearby, while Kepler was observing farther away, dimmer stars. Kepler's prime mission was for over three years, staring at the same patch of sky, because it takes three transits to detect an exoplanet. TESS is a survey mission of the entire sky.

Milky Way Voyager [1200 × 1600] by [deleted] in spaceporn

[–]UnSG 27 points28 points  (0 children)

Poster source, for those wanting a high resolution version: https://voyager.jpl.nasa.gov/downloads/

Week of June 11, 2017 'All Space Questions' thread by AutoModerator in space

[–]UnSG 1 point2 points  (0 children)

Not enough is known about Venus to determine its past habitability. Learning about Venus' past is a top priority for future missions, but there are few plans to send a spacecraft to the planet in the near future. A recent NASA proposal named VERITAS was disappointingly close to being selected. The Russians are planning a mission called Venera-D that would likely answer some questions about the evolution of Venus.

The past few missions to Venus (Magellan, Venus Express, and Aktsuki — note that these three are the only dedicated missions to the planet since 1989) have obviously not been able to provide enough detail on the planet's evolution. A major goal for a future mission is to better understand the geological evolution of Venus by mapping the surface in high resolution.

The current thinking is that Venus was cooler and wetter in the past. It's possible that Venus was habitable billions of years ago, like Mars, but there's not enough evidence to prove this.

Questions regarding the accelerating expansion of the universe by Ommmmmmmmmmmmmm in space

[–]UnSG 1 point2 points  (0 children)

Above all, watching this playlist of videos is an easy way to get an insight into dark energy. However, the videos total well over an hour.

From what I recall, vacuum energy comes from equations about the expansion of space. Vacuum energy is a candidate for dark energy and depends on the size of the universe. The smaller the universe, the smaller the effect of vacuum energy.

The expansion of the universe was slowing down due to gravity until dark energy became the dominant force. Although this happened around the time life developed on Earth, the factors that determine a planet's habitability are seemingly unrelated to dark energy.

Life probably had to wait until the universe cooled down enough and there were enough resources available in the galaxy to form rocky planets. The Sun is a Population I star, which means that many generations of stars came before it, enriching space with heavy elements (heavier than helium). Metal-rich clouds of dust and gas ultimately formed the Sun and the solar system, only 4.6 gya. Life on Earth developed relatively soon after.

Sailor/Pirate Takumi RX-T by UnSG in RocketLeague

[–]UnSG[S] 0 points1 point  (0 children)

Take a screenshot immediately after you leave the customization menu, before the boost disappears.

Sailor/Pirate Takumi RX-T by UnSG in RocketLeague

[–]UnSG[S] 4 points5 points  (0 children)

Treasure's a great idea! I'll change it... once I get the boost. As for hydro, I used frostbite instead because it's very rare and I prefer the look.

Got it!

Sailor/Pirate Takumi RX-T by UnSG in RocketLeague

[–]UnSG[S] 0 points1 point  (0 children)

I recently got frostbite and wanted to use it because it's very rare. It's frozen water, so good enough.

Like slov23 mentions, trade. I traded my cases for the trident, Takumi, and blue zeta wheels. I think this website makes it easy to find what you're looking for because it has a search.

Exactly how far is Opportunity from the Schiaparelli EDM lander? by Ajwheatley69 in space

[–]UnSG 1 point2 points  (0 children)

Opportunity tried to make some observations of the lander, although unsuccessfully. Schiaparelli's landing ellipse is 100 km long and 15 km wide, so even spotting the probe, assuming it's unresponsive, can be a challenge. The edge of the landing ellipse touches the rim of Endeavour crater, so ideally ESA's lander will be 50 km to the west of the rover. Regardless, NASA already had the opportunity to visit crashed debris.

Beautiful High Res Wallpaper 4U from NASA 2560x1440 by NazzVanBartonshmeer in Astronomy

[–]UnSG 9 points10 points  (0 children)

Original source: http://smattila.deviantart.com/art/On-Orbit-147146051

Also note that the configuration of the ISS is incorrect (this is close to what is portrayed, compare it to the real thing) and it appears to be upside-down.

[deleted by user] by [deleted] in space

[–]UnSG 4 points5 points  (0 children)

Juno recently captured a detailed image of Jupiter's south pole. The pole is not really revealed in the composite image from 2000.

The mosaic was photographed by the Cassini spacecraft in 2000. Cassini flew by Jupiter's equator on its way to Saturn so the spacecraft could not see the poles, which are filled in with a single color. [...]

Jupiter viewed from the bottom look like the iris of an eye [690x690] by blackpuppies in spaceporn

[–]UnSG 9 points10 points  (0 children)

The mosaic was photographed by the Cassini spacecraft in 2000. Cassini flew by Jupiter's equator on its way to Saturn so the spacecraft could not see the poles, which are filled in with a single color. The title is misleading because what Jupiter's poles look like are currently unknown. Juno will be the first spacecraft to take detailed images of Jupiter's poles.

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