Earth Scale Explorer

Mars sits at 1.52 AU from the Sun, giving it a 687-Earth-day year and global temperatures around -60°C because it receives less than half the solar energy Earth does.

China is leveraging its growing space capabilities to target a major first: returning Martian samples ahead of NASA.

• Tianwen 3 mission plans dual...

Proxima Centauri, our nearest star at 4.25 light-years, marks the next scale beyond solar-system distances.

• Only 15% the Sun’s diameter (ping-pong...

• 核心视觉：地球与月球在太阳前仅为小剪影，凸显太阳巨大尺度
• 现象频率：每25-100年出现一次，下次2084年持续约8.5小时
• 距离启示：直观展示地球—火星空间跨度与太阳系布局

A clock on Mars ticks 477 microseconds faster per day than one on Earth, with the gap varying by 226 microseconds due to weaker gravity and Mars's...

Elias 2-24 b is the youngest confirmed planet at under 1 million years old, still embedded in its natal disk 55 times farther from its star than Earth...

Size It Up Space offers a simple visual game to sharpen your sense of solar system scales.

• Resize a white silhouette against a fixed black...

Saturn anchors planetary scale with striking contrasts.

• Nine times wider than Earth at 116,460 km, yet its 0.69 g/cm³ density would let it float in...

On September 12, 2013, Voyager 1 became the first man-made spacecraft to leave the solar system after launching 36 years earlier. This anniversary highlights humanity's farthest reach into interstellar space.

• Record-small detections: Hubble and Webb jointly characterized 27 trans-Neptunian objects as tiny as 5 km across at 30–80 AU distances
• Preserved...

Psyche sits 2.5–3.3 AU from the Sun—three times Earth’s distance—with an irregular potato shape up to 280 km wide.

• Likely 30–60% metal by volume,...

A light-year equals 5.88 trillion miles—the distance light covers in one year at 186,000 miles per second. It measures space, not time, revealing the...

A single pair of numbers like 480 × 36,000 km instantly maps an orbit stretching from near-Earth perigee to geostationary apogee distances, showing...

Exorbit Space's interactive simulators fix each planet at center to reveal moon orbital layouts and realtime motion across the solar system.

• Earth:...

A NASA-funded concept called Interworld Slingshot Resource Surveys would extend Landsat-style mineral mapping by sending a spacecraft on flybys of the...

Mars hosts volcanoes far larger than Earth's due to its stationary crust.

• Olympus Mons towers more than 13 miles high and covers an area the size...

Mars isn't merely a smaller Earth: its southern interior runs 200–400°C hotter than the north and may still hold molten pockets today. This deep...

Venus orbits closer to the Sun than Earth and Mars, with Mars at roughly 227.9 million kilometers. This shows how planets that seem near each other are separated by huge distances in the solar system.

太阳在银河系中的运动可能多次压缩日球层，让地球暴露于星际物质中。

约200-300万年前和600-700万年前，太阳穿越致密星际云，日球层剧烈收缩，地球或直接接触宇宙射线与氢气，可能改变大气化学与气候。

BU天体物理学家Merav Opher领导的COSMIC中心正整合银河系路径、氦-10同位素和古冰芯数据，检验这一跨尺度影响。

Spanish astronomers confirmed two planets around a red dwarf 337 light-years away.

• Inner world TOI-1752 b orbits in less than a day and may feature...