Solar System Exploration
By the Numbers
By the Numbers
By the Numbers
By the Numbers
They focus on our star, but three of NASA’s Sun-watching spacecraft have also captured unique views of the planets.
Unique Solar System Views from Sun-Watching Spacecraft
NASA and Poland have agreed to cooperate on a NASA heliophysics mission, the Interstellar Mapping and Acceleration Probe (IMAP).
NASA, Poland to Cooperate on Interplanetary Space Mission
NASA’s Solar Dynamics Observatory, or SDO, has experienced its first lunar transit of the year.
NASA's SDO Spots First Lunar Transit of 2021
These earthquake-like events release acoustic energy in the form of waves that ripple along the Sun’s surface.
Secrets Behind Sunquakes Could Lurk Beneath the Solar Surface
NASA has approved two heliophysics missions to explore the Sun and the system that drives space weather near Earth.
NASA Approves Heliophysics Missions to Explore Sun, Earth's Aurora
Researchers may have found the long-sought “nanoflares” thought to heat the solar corona to its incredible temperatures.
This May Be the First Complete Observation of a Nanoflare
As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, a little tiny speck was flying past the Sun – a recently discovered comet.
Recently Discovered Comet Seen During 2020 Total Solar Eclipse
NASA has selected two SmallSat missions to share a ride to space in 2025 with the agency’s Interstellar Mapping and Acceleration Probe.
NASA Selects Heliophysics Missions
SOHO’s original operating phase was scheduled for two years – and now, through repeated extensions, it is celebrating 25 years in orbit.
Sun-Observing SOHO Mission Celebrates a Quarter-Century in Space
New research indicates less intense, but longer-lasting solar storms surprisingly have bigger effects on satellites’ orbits than the shorter, more severe ones.
Solar Superstorms of the Past Help Identify Risks for Satellites
Measurements from NASA’s New Horizons spacecraft are revising our estimates of one key property of the interstellar medium: how thick it is.
New Evidence Our Neighborhood in Space Is Stuffed With Hydrogen
When scientists downlinked data from Parker Solar Probe's sixth orbit, there was a surprise waiting for them: a sungrazing comet.
Two Views of a Sungrazing Comet
On Oct. 16, 2020, the Moon photobombed NASA’s Solar Dynamics Observatory’s view of the Sun.
NASA's Solar Dynamics Observatory Catches a Lunar Transit
In a new study, scientists looked at sunspots at low resolution to simulate a view of distant stars.
New Look at Sunspots Helps Scientists Understand Life Around Other Stars
In a paper published in Nature Astronomy, researchers report the first ever clear images of nanojets.
NASA's IRIS Spots Nanojets: Shining Light On Heating the Solar Corona
The Sun is stirring from its latest slumber. Sunspots and flares are bubbling from the Sun's surface – signs that a new solar cycle has started.
What Will Solar Cycle 25 Look Like?
Surveying sunspots is the most basic of ways we study how solar activity rises and falls over time, and it’s the basis of how we track the solar cycle.
How Scientists Around the World Track the Solar Cycle
Experts from NASA and NOAA discuss their analysis and predictions for the new solar cycle.
Solar Cycle 25 Is Here, Scientists Explain What That Means
The proposals are for missions to improve our understanding of the Sun and the space environment with which it interacts around Earth.
NASA Selects Proposals for New Space Environment Missions
Astronomers report the discovery of 95 objects known as brown dwarfs, many within a few dozen light-years of our Sun.
Citizen Scientists Discover Dozens of New Cosmic Neighbors
Recent observations show that an unusually weak spot in Earth's magnetic field is expanding, weakening, and splitting.
NASA Researchers Track Slowly Splitting 'Dent' in Earth's Magnetic Field
In 2009, NASA launched a sounding rocket to measure helium in the Sun's atmosphere.The results were recently published.
Sounding Rocket Finds Helium Structures in Sun's Atmosphere
Scientists have developed a new prediction of the shape of the bubble surrounding our solar system.
Uncovering Our Solar System's Shape
Scientists have developed a new model that predicted seven out of nine of the Sun’s biggest recent flares.
NASA Sun Data Helps New Model Predict Big Solar Flares
The first images from ESA/NASA’s Solar Orbiter are now available to the public, including the closest pictures taken of the Sun.
Solar Orbiter Returns First Data, Snaps Closest Pictures of Sun